The Programme for International Student Assessment, Electronic Reading Assessment 2009
World, 2009
Created on
Sep 05, 2014
Last modified
Mar 29, 2019
Page views
26853
Downloads
2106
Original stratum (STRATUM)
Data file: ERA_SCQ09_JUNE11
Overview
Valid:
3628
Invalid:
0
Type:
Discrete
Start:
463
End:
467
Width:
5
Format:
Questions and instructions
Categories
| Value | Category |
|---|---|
| 00801 | ALB: North/Urban/General |
| 00802 | ALB: North/Urban/Vocational |
| 00803 | ALB: North/Rural/General |
| 00804 | ALB: Center/Urban/General |
| 00805 | ALB: Center/Urban/Vocational |
| 00806 | ALB: Center/Rural/General |
| 00807 | ALB: South/Urban/General |
| 00808 | ALB: South/Urban/Vocational |
| 00809 | ALB: South/Rural/General |
| 00810 | ALB: Rural/Vocational |
| 00811 | ALB: Stratum 11 |
| 03197 | AZE: Stratum 97 |
| 03201 | ARG: 01: Centro |
| 03202 | ARG: 02: NEA |
| 03203 | ARG: 03: NOA |
| 03204 | ARG: 04: Cuyo |
| 03205 | ARG: 05: Patagonia |
| 03601 | AUS: ACT_Catholic |
| 03602 | AUS: ACT_Government |
| 03603 | AUS: ACT_Independent |
| 03604 | AUS: NSW_Catholic |
| 03605 | AUS: NSW_Government |
| 03606 | AUS: NSW_Independent |
| 03607 | AUS: VIC_Catholic |
| 03608 | AUS: VIC_Government |
| 03609 | AUS: VIC_Independent |
| 03610 | AUS: QLD_Catholic |
| 03611 | AUS: QLD_Government |
| 03612 | AUS: QLD_Independent |
| 03613 | AUS: SA_Catholic |
| 03614 | AUS: SA_Government |
| 03615 | AUS: SA_Independent |
| 03616 | AUS: WA_Catholic |
| 03617 | AUS: WA_Government |
| 03618 | AUS: WA_Independent |
| 03619 | AUS: TAS_Catholic |
| 03620 | AUS: TAS_Government |
| 03621 | AUS: TAS_Independent |
| 03622 | AUS: NT_Catholic |
| 03623 | AUS: NT_Government |
| 03624 | AUS: NT_Independent |
| 03625 | AUS: Stratum 25 |
| 04097 | AUT: Stratum 97 |
| 05601 | BEL: Flanders/Gen Ed only/private subsidized |
| 05602 | BEL: Flanders/Gen Ed only/network comm. schls |
| 05603 | BEL: Flanders/Gen Ed and other type/private subsidized |
| 05604 | BEL: Flanders/Gen Ed and other type/network comm. schls |
| 05605 | BEL: Flanders/Tech/Voc/no Gen Ed/ private subsidized |
| 05606 | BEL: Flanders/Tech/Voc/no Gen Ed/network comm. schls |
| 05607 | BEL: Flanders/Spec Ed/ private subsidized |
| 05608 | BEL: Flanders/Spec Ed/network comm. schls |
| 05609 | BEL: Flanders/Part-time Voc/ private subsidized |
| 05611 | BEL: French com/Regular/private sectarian |
| 05612 | BEL: French com/Regular/public at state/community level |
| 05613 | BEL: French com/Regular/public at local level |
| 05614 | BEL: French com/Regular/private non-sectarian |
| 05615 | BEL: French com/Spec Ed/private sectarian |
| 05616 | BEL: French com/Spec Ed/public at state/community level |
| 05617 | BEL: French com/Spec Ed/public at local level |
| 05618 | BEL: French com/Spec Ed/private non-sectarian |
| 05619 | BEL: French com/Part-time Voc/private sectarian |
| 05620 | BEL: French com/Part-time Voc/public at state/community leve |
| 05621 | BEL: French com/Part-time Voc /public at local level |
| 05622 | BEL: German com/Regular |
| 05623 | BEL: German com/Special Ed |
| 07601 | BRA: ACRE - no grade 9 |
| 07602 | BRA: ACRE - grade 9, SMOP=1 |
| 07603 | BRA: ACRE - grade 9, SMOP=53 |
| 07604 | BRA: ALAGOAS - no grade 9 |
| 07605 | BRA: ALAGOAS - grade 9, SMOP=1 |
| 07606 | BRA: ALAGOAS - grade 9, SMOP=53 |
| 07607 | BRA: AMAPÁ - no grade 9 |
| 07608 | BRA: AMAPÁ - grade 9, SMOP=1 |
| 07609 | BRA: AMAPÁ - grade 9, SMOP=53 |
| 07610 | BRA: AMAZONAS - no grade 9 |
| 07611 | BRA: AMAZONAS - grade 9, SMOP=1 |
| 07612 | BRA: AMAZONAS - grade 9, SMOP=53 |
| 07613 | BRA: BAHIA - no grade 9 |
| 07614 | BRA: BAHIA - grade 9, SMOP=1 |
| 07615 | BRA: BAHIA - grade 9, SMOP=53 |
| 07616 | BRA: CEARÁ - no grade 9 |
| 07617 | BRA: CEARÁ - grade 9, SMOP=1 |
| 07618 | BRA: CEARÁ - grade 9, SMOP=53 |
| 07619 | BRA: DISTRITO FEDERAL - no grade 9 |
| 07620 | BRA: DISTRITO FEDERAL - grade 9, SMOP=1 |
| 07621 | BRA: DISTRITO FEDERAL - grade 9, SMOP=53 |
| 07622 | BRA: ESPÍRITO SANTO - no grade 9 |
| 07623 | BRA: ESPÍRITO SANTO - grade 9, SMOP=1 |
| 07624 | BRA: ESPÍRITO SANTO - grade 9, SMOP=53 |
| 07625 | BRA: GOIÁS - no grade 9 |
| 07626 | BRA: GOIÁS - grade 9, SMOP=1 |
| 07627 | BRA: GOIÁS - grade 9, SMOP=53 |
| 07628 | BRA: MARANHÃO - no grade 9 |
| 07629 | BRA: MARANHÃO - grade 9, SMOP=1 |
| 07630 | BRA: MARANHÃO - grade 9, SMOP=53 |
| 07631 | BRA: MATO GROSSO - no grade 9 |
| 07632 | BRA: MATO GROSSO - grade 9, SMOP=1 |
| 07633 | BRA: MATO GROSSO - grade 9, SMOP=53 |
| 07634 | BRA: MATO GROSSO DO SUL - no grade 9 |
| 07635 | BRA: MATO GROSSO DO SUL - grade 9, SMOP=1 |
| 07636 | BRA: MATO GROSSO DO SUL - grade 9, SMOP=53 |
| 07637 | BRA: MINAS GERAIS - no grade 9 |
| 07638 | BRA: MINAS GERAIS - grade 9, SMOP=1 |
| 07639 | BRA: MINAS GERAIS - grade 9, SMOP=53 |
| 07640 | BRA: PARÁ - no grade 9 |
| 07641 | BRA: PARÁ - grade 9, SMOP=1 |
| 07642 | BRA: PARÁ - grade 9, SMOP=53 |
| 07643 | BRA: PARAÍBA - no grade 9 |
| 07644 | BRA: PARAÍBA - grade 9, SMOP=1 |
| 07645 | BRA: PARAÍBA - grade 9, SMOP=53 |
| 07646 | BRA: PARANÁ - no grade 9 |
| 07647 | BRA: PARANÁ - grade 9, SMOP=1 |
| 07648 | BRA: PARANÁ - grade 9, SMOP=53 |
| 07649 | BRA: PERNAMBUCO - no grade 9 |
| 07650 | BRA: PERNAMBUCO - grade 9, SMOP=1 |
| 07651 | BRA: PERNAMBUCO - grade 9, SMOP=53 |
| 07652 | BRA: PIAUÍ - no grade 9 |
| 07653 | BRA: PIAUÍ - grade 9, SMOP=1 |
| 07654 | BRA: PIAUÍ - grade 9, SMOP=53 |
| 07655 | BRA: RIO DE JANEIRO - no grade 9 |
| 07656 | BRA: RIO DE JANEIRO - grade 9, SMOP=1 |
| 07657 | BRA: RIO DE JANEIRO - grade 9, SMOP=53 |
| 07658 | BRA: RIO GRANDE DO NORTE - no grade 9 |
| 07659 | BRA: RIO GRANDE DO NORTE - grade 9, SMOP=1 |
| 07660 | BRA: RIO GRANDE DO NORTE - grade 9, SMOP=53 |
| 07661 | BRA: RIO GRANDE DO SUL - no grade 9 |
| 07662 | BRA: RIO GRANDE DO SUL - grade 9, SMOP=1 |
| 07663 | BRA: RIO GRANDE DO SUL - grade 9, SMOP=53 |
| 07664 | BRA: RONDÔNIA - no grade 9 |
| 07665 | BRA: RONDÔNIA - grade 9, SMOP=1 |
| 07666 | BRA: RONDÔNIA - grade 9, SMOP=53 |
| 07667 | BRA: RORAIMA - no grade 9 |
| 07668 | BRA: RORAIMA - grade 9, SMOP=1 |
| 07669 | BRA: RORAIMA - grade 9, SMOP=53 |
| 07670 | BRA: SANTA CATARINA - no grade 9 |
| 07671 | BRA: SANTA CATARINA - grade 9, SMOP=1 |
| 07672 | BRA: SANTA CATARINA - grade 9, SMOP=53 |
| 07673 | BRA: SÃO PAULO - no grade 9 |
| 07674 | BRA: SÃO PAULO - grade 9, SMOP=1 |
| 07675 | BRA: SÃO PAULO - grade 9, SMOP=53 |
| 07676 | BRA: SERGIPE - no grade 9 |
| 07677 | BRA: SERGIPE - grade 9, SMOP=1 |
| 07678 | BRA: SERGIPE - grade 9, SMOP=53 |
| 07679 | BRA: TOCANTINS - no grade 9 |
| 07680 | BRA: TOCANTINS - grade 9, SMOP=1 |
| 07681 | BRA: TOCANTINS - grade 9, SMOP=53 |
| 07682 | BRA: Stratum 82 |
| 10001 | BGR: 1. General profiled ISCED3,1 |
| 10002 | BGR: 1. General profiled ISCED3,2 |
| 10003 | BGR: 1. General profiled ISCED3,3 |
| 10004 | BGR: 1. General profiled ISCED3,4 |
| 10005 | BGR: 1. General profiled ISCED3,5 |
| 10006 | BGR: 1. General profiled ISCED3,6 |
| 10007 | BGR: 1. General profiled ISCED3,7 |
| 10008 | BGR: 1. General profiled ISCED3,8 |
| 10009 | BGR: 1. General profiled ISCED3,9 |
| 10010 | BGR: 1. General profiled ISCED3,10 |
| 10011 | BGR: 1. General profiled ISCED3,11 |
| 10012 | BGR: 2. General non-profiled ISCED3,1 |
| 10014 | BGR: 2. General non-profiled ISCED3,3 |
| 10015 | BGR: 2. General non-profiled ISCED3,4 |
| 10016 | BGR: 2. General non-profiled ISCED3,5 |
| 10017 | BGR: 2. General non-profiled ISCED3,6 |
| 10018 | BGR: 2. General non-profiled ISCED3,7 |
| 10019 | BGR: 2. General non-profiled ISCED3,8 |
| 10020 | BGR: 2. General non-profiled ISCED3,9 |
| 10021 | BGR: 2. General non-profiled ISCED3,10 |
| 10022 | BGR: 2. General non-profiled ISCED3,11 |
| 10023 | BGR: 3. Other,1 |
| 10024 | BGR: 3. Other,2 |
| 10025 | BGR: 3. Other,3 |
| 10026 | BGR: 3. Other,4 |
| 10027 | BGR: 3. Other,5 |
| 10028 | BGR: 3. Other,6 |
| 10029 | BGR: 3. Other,7 |
| 10030 | BGR: 3. Other,8 |
| 10031 | BGR: 3. Other,9 |
| 10032 | BGR: 3. Other,10 |
| 10033 | BGR: 3. Other,11 |
| 12401 | CAN: 00 - prov 10 Fr.& Eng. 1 to 17 |
| 12402 | CAN: 01 - prov 10 Fr.& Eng. 18 to 34 |
| 12403 | CAN: 02 - prov 10 Fr.& Eng. 35 to ... |
| 12404 | CAN: 10 - prov 11 Fr.& Eng. 1 to ... |
| 12405 | CAN: 20 - prov 12 Eng. 1 to 17 |
| 12406 | CAN: 21 - prov 12 Eng. 18 to 34 |
| 12407 | CAN: 22 - prov 12 Eng. 35 to ... |
| 12408 | CAN: 25 - prov 12 Fr. 1 to 17 |
| 12409 | CAN: 26 - prov 12 Fr. 18 to ... |
| 12410 | CAN: 30 - prov 13 Eng. 1 to 34 |
| 12411 | CAN: 31 - prov 13 Eng. 35 to ... |
| 12412 | CAN: 35 - prov 13 Fr. 1 to 34 |
| 12413 | CAN: 36 - prov 13 Fr. 35 to 139 |
| 12414 | CAN: 37 - prov 13 Fr. 140 to ... |
| 12415 | CAN: 40 - prov 24 Eng. 1 to 17 |
| 12416 | CAN: 41 - prov 24 Eng. 18 to 34 |
| 12417 | CAN: 42 - prov 24 Eng. 35 to ... |
| 12418 | CAN: 45 - prov 24 Fr. 1 to 34 |
| 12419 | CAN: 46 - prov 24 Fr. 35 to ... |
| 12420 | CAN: 50 - prov 35 Eng. 1 to 34 |
| 12421 | CAN: 51 - prov 35 Eng. 35 to ... |
| 12422 | CAN: 55 - prov 35 Fr. 1 to 17 |
| 12423 | CAN: 56 - prov 35 Fr. 18 to 34 |
| 12424 | CAN: 57 - prov 35 Fr. 35 to ... |
| 12425 | CAN: 60 - prov 46 Eng. 1 to 17 |
| 12426 | CAN: 61 - prov 46 Eng. 18 to 34 |
| 12427 | CAN: 62 - prov 46 Eng. 35 to ... |
| 12428 | CAN: 65 - prov 46 Fr. 1 to 17 |
| 12429 | CAN: 66 - prov 46 Fr. 18 to ... |
| 12430 | CAN: 70 - prov 47 Eng. 1 to 17 |
| 12431 | CAN: 71 - prov 47 Eng. 18 to 34 |
| 12432 | CAN: 72 - prov 47 Eng. 35 to ... |
| 12433 | CAN: 75 - prov 47 Fr. 1 to 8 |
| 12434 | CAN: 76 - prov 47 Fr. 9 to ... |
| 12435 | CAN: 80 - prov 48 Eng. 1 to 17 |
| 12436 | CAN: 81 - prov 48 Eng. 18 to 34 |
| 12437 | CAN: 82 - prov 48 Eng. 35 to ... |
| 12438 | CAN: 85 - prov 48 Fr. 1 to 8 |
| 12439 | CAN: 86 - prov 48 Fr. 9 to ... |
| 12440 | CAN: 90 - prov 59 Eng. 1 to 17 |
| 12441 | CAN: 91 - prov 59 Eng. 18 to 34 |
| 12442 | CAN: 92 - prov 59 Eng. 35 to ... |
| 12443 | CAN: 95 - prov 59 Fr. 1 to 8 |
| 12444 | CAN: 96 - prov 59 Fr. 9 to ... |
| 12445 | CAN: Stratum 45 |
| 15297 | CHL: 18: Stratum 97 |
| 15601 | QCN: Lower secondary |
| 15602 | QCN: Mixed ISCED2 and ISCED3 secondary |
| 15603 | QCN: Upper secondary/ General/ Experimental Model schools |
| 15604 | QCN: Upper secondary/ General/ Ordinary schools |
| 15605 | QCN: Upper secondary/ Vocational/ Key schools |
| 15606 | QCN: Upper secondary/ Vocational/ Non-Key schools |
| 15607 | QCN: Stratum 07 |
| 15801 | TAP: general junior high school/public/urban |
| 15802 | TAP: general junior high school/public/rural |
| 15803 | TAP: general junior high school/private/urban |
| 15804 | TAP: general junior high school/private/rural |
| 15805 | TAP: general senior high school/public/urban |
| 15806 | TAP: general senior high school/public/rural |
| 15807 | TAP: general senior high school/private/urban |
| 15808 | TAP: general senior high school/private/rural |
| 15809 | TAP: vocational senior high school/public/urban |
| 15810 | TAP: vocational senior high school/public/rural |
| 15811 | TAP: vocational senior high school/private/urban |
| 15812 | TAP: vocational senior high school/private/rural |
| 15813 | TAP: mixed general and vocational senior high school/public/ |
| 15814 | TAP: mixed general and vocational senior high school/public/ |
| 15815 | TAP: mixed general and vocational senior high school/private |
| 15816 | TAP: mixed general and vocational senior high school/private |
| 15817 | TAP: comprehensive high school/public/urban |
| 15818 | TAP: comprehensive high school/public/rural |
| 15819 | TAP: comprehensive high school/private/urban |
| 15820 | TAP: comprehensive high school/private/rural |
| 15821 | TAP: complex high school/public/urban |
| 15822 | TAP: complex high school/public/rural |
| 15823 | TAP: complex high school/private/urban |
| 15824 | TAP: complex high school/private/rural |
| 15825 | TAP: five-year college/public/urban |
| 15826 | TAP: five-year college/public/rural |
| 15827 | TAP: five-year college/private/urban |
| 15828 | TAP: five-year college/private/rural |
| 15829 | TAP: Stratum 29 |
| 17001 | COL: 01: BARRANQUILLA |
| 17002 | COL: 02: BOGOTÁ |
| 17003 | COL: 03: CÚCUTA |
| 17004 | COL: 04: rest of MANIZALES |
| 17005 | COL: 05: Manizales-Escuela Activa |
| 17006 | COL: 06: MEDELLÍN |
| 17007 | COL: 07: PASTO |
| 17008 | COL: 08: PEREIRA |
| 17009 | COL: 09: REST OF THE COUNTRY |
| 17011 | COL: 11: VILLAVICENCIO |
| 17012 | COL: Stratum 12 |
| 19101 | HRV: 1 - Four year vocational prog. |
| 19102 | HRV: 2 - Vocational - industrial - crafts prog. |
| 19103 | HRV: 3 - Mixed type |
| 19104 | HRV: 4 - Art - vocational prog. |
| 19105 | HRV: 5 - Gymnasium |
| 19106 | HRV: 6 - Primary schools (lower secondary education) |
| 19107 | HRV: Stratum 7 |
| 20301 | CZE: Basic/Region1/L |
| 20302 | CZE: Basic/Region1/M |
| 20303 | CZE: Basic/Region1/V |
| 20304 | CZE: Basic/Region2/L |
| 20305 | CZE: Basic/Region2/M |
| 20306 | CZE: Basic/Region2/V |
| 20307 | CZE: Basic/Region3/L |
| 20308 | CZE: Basic/Region3/M |
| 20309 | CZE: Basic/Region3/V |
| 20310 | CZE: Basic/Region4/L |
| 20311 | CZE: Basic/Region4/M |
| 20312 | CZE: Basic/Region4/V |
| 20313 | CZE: Basic/Region5/L |
| 20314 | CZE: Basic/Region5/M |
| 20315 | CZE: Basic/Region5/V |
| 20316 | CZE: Basic/Region6/L |
| 20317 | CZE: Basic/Region6/M |
| 20318 | CZE: Basic/Region6/V |
| 20319 | CZE: Basic/Region7/L |
| 20320 | CZE: Basic/Region7/M |
| 20321 | CZE: Basic/Region7/V |
| 20322 | CZE: Basic/Region8/L |
| 20323 | CZE: Basic/Region8/M |
| 20324 | CZE: Basic/Region8/V |
| 20325 | CZE: Basic/Region9/L |
| 20326 | CZE: Basic/Region9/M |
| 20327 | CZE: Basic/Region9/V |
| 20328 | CZE: Basic/Region10/L |
| 20329 | CZE: Basic/Region10/M |
| 20330 | CZE: Basic/Region10/V |
| 20331 | CZE: Basic/Region11/L |
| 20332 | CZE: Basic/Region11/M |
| 20333 | CZE: Basic/Region11/V |
| 20334 | CZE: Basic/Region12/L |
| 20335 | CZE: Basic/Region12/M |
| 20336 | CZE: Basic/Region12/V |
| 20337 | CZE: Basic/Region13/L |
| 20338 | CZE: Basic/Region13/M |
| 20339 | CZE: Basic/Region13/V |
| 20340 | CZE: Basic/Region14/L |
| 20341 | CZE: Basic/Region14/M |
| 20342 | CZE: Basic/Region14/V |
| 20343 | CZE: 6-8yrGym/Region1/L |
| 20344 | CZE: 6-8yrGym/Region1/M&V |
| 20345 | CZE: 6-8yrGym/Region2/L |
| 20346 | CZE: 6-8yrGym/Region2/M&V |
| 20347 | CZE: 6-8yrGym/Region3/L |
| 20348 | CZE: 6-8yrGym/Region3/M&V |
| 20349 | CZE: 6-8yrGym/Region4/L |
| 20350 | CZE: 6-8yrGym/Region4/M&V |
| 20351 | CZE: 6-8yrGym/Region5/L |
| 20352 | CZE: 6-8yrGym/Region5/M&V |
| 20353 | CZE: 6-8yrGym/Region6/L |
| 20354 | CZE: 6-8yrGym/Region6/M&V |
| 20355 | CZE: 6-8yrGym/Region7/L |
| 20356 | CZE: 6-8yrGym/Region7/M&V |
| 20357 | CZE: 6-8yrGym/Region8/L |
| 20358 | CZE: 6-8yrGym/Region8/M&V |
| 20359 | CZE: 6-8yrGym/Region9/L |
| 20360 | CZE: 6-8yrGym/Region9/M&V |
| 20361 | CZE: 6-8yrGym/Region10/L |
| 20362 | CZE: 6-8yrGym/Region10/M&V |
| 20363 | CZE: 6-8yrGym/Region11/L |
| 20364 | CZE: 6-8yrGym/Region11/M&V |
| 20365 | CZE: 6-8yrGym/Region12/L |
| 20366 | CZE: 6-8yrGym/Region12/M&V |
| 20367 | CZE: 6-8yrGym/Region13/L |
| 20368 | CZE: 6-8yrGym/Region13/M&V |
| 20369 | CZE: 6-8yrGym/Region14/L |
| 20370 | CZE: 6-8yrGym/Region14/M&V |
| 20371 | CZE: 4yr Gym/Large |
| 20372 | CZE: Voc-conservatory/Large |
| 20373 | CZE: Voc-without maturate/Large |
| 20374 | CZE: Special/practical/Large |
| 20375 | CZE: 4yrGym/Voc-C/Voc-other/MSS |
| 20376 | CZE: 4yrGym/Voc-C/Voc-other/VSS |
| 20377 | CZE: Special/practical/MSS |
| 20378 | CZE: Special/practical/VSS |
| 20801 | DNK: 1=high minority |
| 20802 | DNK: 2=mid minority |
| 20803 | DNK: 3= low minority |
| 20804 | DNK: 4= all other |
| 20872 | DNK: Stratum 72 |
| 23301 | EST: Estonian |
| 23302 | EST: Mix |
| 23303 | EST: Russian |
| 23304 | EST: Stratum 4 |
| 24601 | FIN: Southern Finland, urban, MR_ST=1 |
| 24602 | FIN: Southern Finland, rural, MR_ST=1 |
| 24603 | FIN: Western Finland, urban, MR_ST=1 |
| 24604 | FIN: Western Finland, rural, MR_ST=1 |
| 24605 | FIN: Eastern Finland, urban, MR_ST=1 |
| 24606 | FIN: Eastern Finland, rural, MR_ST=1 |
| 24607 | FIN: Northern Finland, urban, MR_ST=1 |
| 24608 | FIN: Northern Finland, rural, MR_ST=1 |
| 24609 | FIN: Swedish speaking, urban, school types 1 and 2, MR_ST=2 |
| 24610 | FIN: Swedish speaking, urban, school types 3, 4, and 5, MR_S |
| 24611 | FIN: Swedish speaking, rural, school types 1 and 2, MR_ST=2 |
| 24612 | FIN: Swedish speaking, rural, school types 3, 4, and 5, MR_S |
| 25001 | FRA: lycée général et technologique, ENR>=32 |
| 25002 | FRA: collège, ENR>=32 |
| 25003 | FRA: lycée professionnel, ENR>=32 |
| 25004 | FRA: lycée agricole, ENR>=32 |
| 25005 | FRA: moderately small school, 16<=ENR<32 |
| 25006 | FRA: very small school, ENR<16 |
| 27697 | DEU: Stratum 97 |
| 30001 | GRC: ORIGSTRT 01: 11 - Attica Public |
| 30002 | GRC: ORIGSTRT 02: 12 - Central Greece public |
| 30003 | GRC: ORIGSTRT 03: 13 - Central Macedonia public |
| 30004 | GRC: ORIGSTRT 04: 14 - Crete public |
| 30005 | GRC: ORIGSTRT 05: 15 - East Macedonia public |
| 30006 | GRC: ORIGSTRT 06: 16 - Thrace public |
| 30007 | GRC: ORIGSTRT 07: 17 - Epirus public |
| 30008 | GRC: ORIGSTRT 08: 18 - Ionian Islands public |
| 30009 | GRC: ORIGSTRT 09: 19 - North Aegean public |
| 30010 | GRC: ORIGSTRT 10: 20 - Peloponnese public |
| 30011 | GRC: ORIGSTRT 11: 21 - South Aegean public |
| 30012 | GRC: ORIGSTRT 12: 22 - Thessaly public |
| 30013 | GRC: ORIGSTRT 13: 23 - West Greece public |
| 30014 | GRC: ORIGSTRT 14: 24 - West Macedonia public |
| 30015 | GRC: ORIGSTRT 15: 25 - Attica private |
| 30016 | GRC: ORIGSTRT 16: 26 - Rest of Greece private |
| 30017 | GRC: ORIGSTRT 17: 27 - All of Greece evening schools |
| 34401 | HKG: Government |
| 34402 | HKG: Aided or Caput |
| 34403 | HKG: Private |
| 34404 | HKG: Direct Subsidy Scheme |
| 34801 | HUN: primary school |
| 34802 | HUN: grammar school |
| 34803 | HUN: vocational secondary school |
| 34804 | HUN: vocational school |
| 35201 | ISL: 01: Reykjavik |
| 35202 | ISL: 02: Nágrenni Reykjavíkur |
| 35203 | ISL: 03: Suðurnes |
| 35204 | ISL: 04: Vesturland, |
| 35205 | ISL: 05: Vestfirðir, |
| 35206 | ISL: 06: Norðurland-vestra |
| 35207 | ISL: 07: Norðurland-eystra |
| 35208 | ISL: 08: Austurland |
| 35209 | ISL: 09: Suðurland |
| 36001 | IDN: Indonesia |
| 37201 | IRL: Size <=40 / comm../comprehen. |
| 37202 | IRL: Size 41-80 / comm../comprehen. |
| 37203 | IRL: Size > 80 / comm../comprehen. |
| 37204 | IRL: Size <=40 / secondary |
| 37205 | IRL: Size 41-80 / secondary |
| 37206 | IRL: Size > 80 / secondary |
| 37207 | IRL: Size <=40 / vocational |
| 37208 | IRL: Size 41-80 / vocational |
| 37209 | IRL: Size > 80 / vocational |
| 37601 | ISR: Stratum 01 |
| 37602 | ISR: Stratum 02 |
| 37603 | ISR: Stratum 03 |
| 37604 | ISR: Stratum 04 |
| 37605 | ISR: Stratum 05 |
| 37606 | ISR: Stratum 06 |
| 37607 | ISR: Stratum 07 |
| 37608 | ISR: Stratum 08 |
| 37609 | ISR: Stratum 09 |
| 37610 | ISR: Stratum 10 |
| 37611 | ISR: Stratum 11 |
| 38001 | ITA: [Sub 08] PIEMONTE LICEI |
| 38002 | ITA: [Sub 08] PIEMONTE TECNICI |
| 38003 | ITA: [Sub 08] PIEMONTE PROFESSIONALI |
| 38004 | ITA: [Sub 08] PIEMONTE MEDIE |
| 38005 | ITA: [Sub 08] Piemonte FORMAZIONE PROFESSIONALE |
| 38006 | ITA: [Sub 07] LOMBARDIA LICEI |
| 38007 | ITA: [Sub 07] LOMBARDIA TECNICI |
| 38008 | ITA: [Sub 07] LOMBARDIA PROFESSIONALI |
| 38009 | ITA: [Sub 07] LOMBARDIA MEDIE |
| 38010 | ITA: [Sub 07] Lombardia FORMAZIONE PROFESSIONALE |
| 38011 | ITA: [Sub 06] LIGURIA LICEI |
| 38012 | ITA: [Sub 06] LIGURIA TECNICI |
| 38013 | ITA: [Sub 06] LIGURIA PROFESSIONALI |
| 38014 | ITA: [Sub 06] LIGURIA MEDIE |
| 38015 | ITA: [Sub 06] Liguria FORMAZIONE PROFESSIONALE |
| 38016 | ITA: [Sub 21] VALLE D'AOSTA LICEI |
| 38017 | ITA: [Sub 21] VALLE D'AOSTA TECNICI |
| 38018 | ITA: [Sub 21] VALLE D'AOSTA PROFESSIONALI |
| 38019 | ITA: [Sub 21] VALLE D'AOSTA MEDIE |
| 38020 | ITA: [Sub 21] Valle D'Aosta FORMAZIONE PROFESSIONALE |
| 38021 | ITA: [Sub 13] VENETO LICEI |
| 38022 | ITA: [Sub 13] VENETO TECNICI |
| 38023 | ITA: [Sub 13] VENETO PROFESSIONALI |
| 38024 | ITA: [Sub 13] VENETO MEDIE |
| 38025 | ITA: [Sub 13] VENETO FORMAZIONE PROFESSIONALE |
| 38026 | ITA: [Sub 12] TRENTO LICEI |
| 38027 | ITA: [Sub 12] TRENTO TECNICI |
| 38028 | ITA: [Sub 12] TRENTO PROFESSIONALI |
| 38029 | ITA: [Sub 12] TRENTO MEDIE |
| 38030 | ITA: [Sub 12] Trento FORMAZIONE PROFESSIONALE |
| 38031 | ITA: [Sub 01] BOLZANO LICEI |
| 38032 | ITA: [Sub 01] BOLZANO TECNICI |
| 38033 | ITA: [Sub 01] BOLZANO PROFESSIONALI |
| 38034 | ITA: [Sub 01] BOLZANO MEDIE |
| 38035 | ITA: [Sub 01] Bolzano FORMAZIONE PROFESSIONALE |
| 38036 | ITA: [Sub 05] FRIULI VENEZIA GIULIA LICEI |
| 38037 | ITA: [Sub 05] FRIULI VENEZIA GIULIA TECNICI |
| 38038 | ITA: [Sub 05] FRIULI VENEZIA GIULIA PROFESSIONALI |
| 38039 | ITA: [Sub 05] FRIULI VENEZIA GIULIA MEDIE |
| 38040 | ITA: [Sub 05] Friuli Venezia Giulia FORMAZIONE PROFESSIONALE |
| 38041 | ITA: [Sub 04] EMILIA ROMAGNA LICEI |
| 38042 | ITA: [Sub 04] EMILIA ROMAGNA TECNICI |
| 38043 | ITA: [Sub 04] EMILIA ROMAGNA PROFESSIONALI |
| 38045 | ITA: [Sub 04] Emilia Romagna FORMAZIONE PROFESSIONALE |
| 38046 | ITA: [Sub 17] MARCHE LICEI |
| 38047 | ITA: [Sub 17] MARCHE TECNICI |
| 38048 | ITA: [Sub 17] MARCHE PROFESSIONALI |
| 38049 | ITA: [Sub 17] MARCHE MEDIE |
| 38050 | ITA: [Sub 19] TOSCANA LICEI |
| 38051 | ITA: [Sub 19] TOSCANA TECNICI |
| 38052 | ITA: [Sub 19] TOSCANA PROFESSIONALI |
| 38053 | ITA: [Sub 19] TOSCANA MEDIE |
| 38054 | ITA: [Sub 20] UMBRIA LICEI |
| 38055 | ITA: [Sub 20] UMBRIA TECNICI |
| 38056 | ITA: [Sub 20] UMBRIA PROFESSIONALI |
| 38057 | ITA: [Sub 20] UMBRIA MEDIE |
| 38058 | ITA: [Sub 20] Umbria FORMAZIONE PROFESSIONALE |
| 38059 | ITA: [Sub 16] LAZIO LICEI |
| 38060 | ITA: [Sub 16] LAZIO TECNICI |
| 38061 | ITA: [Sub 16] LAZIO PROFESSIONALI |
| 38062 | ITA: [Sub 16] LAZIO MEDIE |
| 38063 | ITA: [Sub 16] Lazio FORMAZIONE PROFESSIONALE |
| 38064 | ITA: [Sub 14] ABRUZZO LICEI |
| 38065 | ITA: [Sub 14] ABRUZZO TECNICI |
| 38066 | ITA: [Sub 14] ABRUZZO PROFESSIONALI |
| 38067 | ITA: [Sub 14] ABRUZZO MEDIE |
| 38068 | ITA: [Sub 14] ABRUZZO FORMAZIONE PROFESSIONALE |
| 38069 | ITA: [Sub 18] MOLISE LICEI |
| 38070 | ITA: [Sub 18] MOLISE TECNICI |
| 38071 | ITA: [Sub 18] MOLISE PROFESSIONALI |
| 38072 | ITA: [Sub 18] MOLISE MEDIE |
| 38073 | ITA: [Sub 18] Molise FORMAZIONE PROFESSIONALE |
| 38074 | ITA: [Sub 03] CAMPANIA LICEI |
| 38075 | ITA: [Sub 03] CAMPANIA TECNICI |
| 38076 | ITA: [Sub 03] CAMPANIA PROFESSIONALI |
| 38077 | ITA: [Sub 03] CAMPANIA MEDIE |
| 38078 | ITA: [Sub 09] PUGLIA LICEI |
| 38079 | ITA: [Sub 09] PUGLIA TECNICI |
| 38080 | ITA: [Sub 09] PUGLIA PROFESSIONALI |
| 38082 | ITA: [Sub 02] BASILICATA LICEI |
| 38083 | ITA: [Sub 02] BASILICATA TECNICI |
| 38084 | ITA: [Sub 02] BASILICATA PROFESSIONALI |
| 38085 | ITA: [Sub 02] BASILICATA MEDIE |
| 38086 | ITA: [Sub 15] CALABRIA LICEI |
| 38087 | ITA: [Sub 15] CALABRIA TECNICI |
| 38088 | ITA: [Sub 15] CALABRIA PROFESSIONALI |
| 38089 | ITA: [Sub 15] CALABRIA MEDIE |
| 38090 | ITA: [Sub 10] SARDEGNA LICEI |
| 38091 | ITA: [Sub 10] SARDEGNA TECNICI |
| 38092 | ITA: [Sub 10] SARDEGNA PROFESSIONALI |
| 38093 | ITA: [Sub 10] SARDEGNA MEDIE |
| 38094 | ITA: [Sub 11] SICILIA LICEI |
| 38095 | ITA: [Sub 11] SICILIA TECNICI |
| 38096 | ITA: [Sub 11] SICILIA PROFESSIONALI |
| 38097 | IT A: [Sub 11] SICILIA MEDIE |
| 38098 | ITA: [Sub 11] Sicilia FORMAZIONE PROFESSIONALE |
| 38099 | ITA: Stratum 99 |
| 39201 | JPN: 1-- Public & Academic |
| 39202 | JPN: 2 – Public & Practical |
| 39203 | JPN: 3 – Private & Academic |
| 39204 | JPN: 4 – Private & Practical |
| 39801 | KAZ: Akmola/ Kazakh only |
| 39802 | KAZ: Akmola/ Russian only |
| 39803 | KAZ: Akmola/ multiple |
| 39804 | KAZ: Aktobe/ Kazakh only |
| 39805 | KAZ: Aktobe/ Russian only |
| 39806 | KAZ: Aktobe/ multiple |
| 39807 | KAZ: Almaty/ Kazakh only |
| 39808 | KAZ: Almaty/ Russian only |
| 39809 | KAZ: Almaty/ multiple |
| 39810 | KAZ: Almaty City/ Kazakh only |
| 39811 | KAZ: Almaty City/ Russian only |
| 39812 | KAZ: Almaty City/ multiple |
| 39813 | KAZ: Astana City/ Kazakh only |
| 39814 | KAZ: Astana City/ Russian only |
| 39815 | KAZ: Astana City/ multiple |
| 39816 | KAZ: Atyrau/ Kazakh only |
| 39817 | KAZ: Atyrau/ Russian only |
| 39818 | KAZ: Atyrau/ multiple |
| 39819 | KAZ: East Kaz./ Kazakh only |
| 39820 | KAZ: East Kaz./ Russian only |
| 39821 | KAZ: East Kaz./ multiple |
| 39822 | KAZ: Zhambyl/ Kazakh only |
| 39823 | KAZ: Zhambyl/ Russian only |
| 39824 | KAZ: Zhambyl/ multiple |
| 39825 | KAZ: West Kaz./ Kazakh only |
| 39826 | KAZ: West Kaz./ Russian only |
| 39827 | KAZ: West Kaz./ multiple |
| 39828 | KAZ: Karagandy/ Kazakh only |
| 39829 | KAZ: Karagandy/ Russian only |
| 39830 | KAZ: Karagandy/ multiple |
| 39831 | KAZ: Kostanay/ Kazakh only |
| 39832 | KAZ: Kostanay/ Russian only |
| 39833 | KAZ: Kostanay/ multiple |
| 39834 | KAZ: Kyzylorda/ Kazakh only |
| 39835 | KAZ: Kyzylorda/ Russian only |
| 39836 | KAZ: Kyzylorda/ multiple |
| 39837 | KAZ: Mangystau/ Kazakh only |
| 39838 | KAZ: Mangystau/ Russian only |
| 39839 | KAZ: Mangystau/ multiple |
| 39840 | KAZ: Pavlodar/ Kazakh only |
| 39841 | KAZ: Pavlodar/ Russian only |
| 39842 | KAZ: Pavlodar/ multiple |
| 39843 | KAZ: North Kaz./ Kazakh only |
| 39844 | KAZ: North Kaz./ Russian only |
| 39845 | KAZ: North Kaz./ multiple |
| 39846 | KAZ: South Kaz./ Kazakh only |
| 39847 | KAZ: South Kaz./ Russian only |
| 39848 | KAZ: South Kaz./ multiple |
| 40001 | JOR: Discovery |
| 40002 | JOR: Public |
| 40003 | JOR: UNRWA |
| 40004 | JOR: Private |
| 41097 | KOR: Stratum 97 |
| 41701 | KGZ: Bishkek / Bishkek |
| 41702 | KGZ: Batken / Rural |
| 41703 | KGZ: Batken / Small Town |
| 41704 | KGZ: Chui / Rural |
| 41705 | KGZ: Chui / Small Town |
| 41706 | KGZ: Issyk-Kul / Rural |
| 41707 | KGZ: Issyk-Kul / Small Town |
| 41708 | KGZ: Jalalabat / Rural |
| 41709 | KGZ: Jalalabat / Small Town |
| 41710 | KGZ: Naryn / Rural |
| 41711 | KGZ: Naryn / Small Town |
| 41712 | KGZ: Osh / Rural |
| 41713 | KGZ: Osh / Small Town |
| 41714 | KGZ: Osh city / Rural |
| 41715 | KGZ: Osh city / Small Town |
| 41716 | KGZ: Talas / Rural |
| 41717 | KGZ: Talas / Small Town |
| 42801 | LVA: Cities |
| 42802 | LVA: Riga |
| 42803 | LVA: Rural |
| 42804 | LVA: Towns |
| 42805 | LVA: Stratum 5 |
| 43865 | LIE: Stratum 65 |
| 44001 | LTU: Capital, Basic |
| 44002 | LTU: Capital, Secondary |
| 44003 | LTU: Capital, Gymnasium |
| 44004 | LTU: Capital, Other |
| 44005 | LTU: City, Basic |
| 44006 | LTU: City, Secondary |
| 44007 | LTU: City, Gymnasium |
| 44008 | LTU: City, Other |
| 44009 | LTU: Town, Basic |
| 44010 | LTU: Town, Secondary |
| 44011 | LTU: Town, Gymnasium |
| 44012 | LTU: Town, Other |
| 44013 | LTU: Village, Basic |
| 44014 | LTU: Village, Secondary |
| 44015 | LTU: Village, Gymnasium |
| 44016 | LTU: Village, Other |
| 44201 | LUX: ES gov public |
| 44202 | LUX: EST gov public |
| 44203 | LUX: ES+EST gov public |
| 44204 | LUX: EST gov private |
| 44205 | LUX: ES+EST gov private |
| 44206 | LUX: gov independent |
| 44601 | MAC: Public, Grammer-International, Chinese and Portuguese |
| 44602 | MAC: Public, Technical-vocational, Chinese |
| 44603 | MAC: Private-in-net, Grammer-International, Chinese |
| 44604 | MAC: Private-in-net, Grammer-International, English |
| 44605 | MAC: Private-in-net, Grammer-International, Chinese and Engl |
| 44606 | MAC: Private-in-net, Technical-vocational, Chinese |
| 44607 | MAC: Private-not- in-net, Grammer-International, Chinese |
| 44608 | MAC: Private-not-in-net, Grammer-International, English |
| 44609 | MAC: Private-not-in-net, Grammer-International, Portuguese |
| 44610 | MAC: Private-not- in-net, Grammer-International, Chinese and |
| 48401 | MEX: AGUASCALIENTES, large schools |
| 48402 | MEX: AGUASCALIENTES, moderately small schools |
| 48403 | MEX: AGUASCALIENTES, very small schools |
| 48404 | MEX: BAJA CALIFORNIA, large schools |
| 48405 | MEX: BAJA CALIFORNIA, moderately small schools |
| 48406 | MEX: BAJA CALIFORNIA, very small schools |
| 48407 | MEX: BAJA CALIFORNIA SUR, large schools |
| 48408 | MEX: BAJA CALIFORNIA SUR, moderately small schools |
| 48409 | MEX: BAJA CALIFORNIA SUR, very small schools |
| 48410 | MEX: CAMPECHE, large schools |
| 48411 | MEX: CAMPECHE, moderately small schools |
| 48412 | MEX: CAMPECHE, very small schools |
| 48413 | MEX: COAHUILA DE ZARAGOZA, large schools |
| 48414 | MEX: COAHUILA DE ZARAGOZA, moderately small schools |
| 48415 | MEX: COAHUILA DE ZARAGOZA, very small schools |
| 48416 | MEX: COLIMA, large schools |
| 48417 | MEX: COLIMA, moderately small schools |
| 48418 | MEX: COLIMA, very small schools |
| 48419 | MEX: CHIAPAS, large schools |
| 48420 | MEX: CHIAPAS, moderately small schools |
| 48421 | MEX: CHIAPAS, very small schools |
| 48422 | MEX: CHIHUAHUA, large schools |
| 48423 | MEX: CHIHUAHUA, moderately small schools |
| 48424 | MEX: CHIHUAHUA, very small schools |
| 48425 | MEX: DISTRITO FEDERAL, large schools |
| 48426 | MEX: DISTRITO FEDERAL, moderately small schools |
| 48427 | MEX: DISTRITO FEDERAL, very small schools |
| 48428 | MEX: DURANGO, large schools |
| 48429 | MEX: DURANGO, moderately small schools |
| 48430 | MEX: DURANGO, very small schools |
| 48431 | MEX: GUANAJUATO, large schools |
| 48432 | MEX: GUANAJUATO, moderately small schools |
| 48433 | MEX: GUANAJUATO, very small schools |
| 48434 | MEX: GUERRERO, large schools |
| 48435 | MEX: GUERRERO, moderately small schools |
| 48436 | MEX: GUERRERO, very small schools |
| 48437 | MEX: HIDALGO, large schools |
| 48438 | MEX: HIDALGO, moderately small schools |
| 48439 | MEX: HIDALGO, very small schools |
| 48440 | MEX: JALISCO, large schools |
| 48441 | MEX: JALISCO, moderately small schools |
| 48442 | MEX: JALISCO, very small schools |
| 48443 | MEX: MEXICO, large schools |
| 48444 | MEX: MEXICO, moderately small schools |
| 48445 | MEX: MEXICO, very small schools |
| 48446 | MEX: MICHOACAN DE OCAMPO, large schools |
| 48447 | MEX: MICHOACAN DE OCAMPO, moderately small schools |
| 48448 | MEX: MICHOACAN DE OCAMPO, very small schools |
| 48449 | MEX: MORELOS, large schools |
| 48450 | MEX: MORELOS, moderately small schools |
| 48451 | MEX: MORELOS, very small schools |
| 48452 | MEX: NAYARIT, large schools |
| 48453 | MEX: NAYARIT, moderately small schools |
| 48454 | MEX: NAYARIT, very small schools |
| 48455 | MEX: NUEVO LEON, large schools |
| 48456 | MEX: NUEVO LEON, moderately small schools |
| 48457 | MEX: NUEVO LEON, very small schools |
| 48458 | MEX: OAXACA, large schools |
| 48459 | MEX: OAXACA, moderately small schools |
| 48460 | MEX: OAXACA, very small schools |
| 48461 | MEX: PUEBLA, large schools |
| 48462 | MEX: PUEBLA, moderately small schools |
| 48463 | MEX: PUEBLA, very small schools |
| 48464 | MEX: QUERETARO DE ARTEAGA, large schools |
| 48465 | MEX: QUERETARO DE ARTEAGA, moderately small schools |
| 48466 | MEX: QUERETARO DE ARTEAGA, very small schools |
| 48467 | MEX: QUINTANA ROO, large schools |
| 48468 | MEX: QUINTANA ROO, moderately small schools |
| 48469 | MEX: QUINTANA ROO, very small schools |
| 48470 | MEX: SAN LUIS POTOSI, large schools |
| 48471 | MEX: SAN LUIS POTOSI, moderately small schools |
| 48472 | MEX: SAN LUIS POTOSI, very small schools |
| 48473 | MEX: SINALOA, large schools |
| 48474 | MEX: SINALOA, moderately small schools |
| 48475 | MEX: SINALOA, very small schools |
| 48476 | MEX: SONORA, large schools |
| 48477 | MEX: SONORA, moderately small schools |
| 48478 | MEX: SONORA, very small schools |
| 48479 | MEX: TABASCO, large schools |
| 48480 | MEX: TABASCO, moderately small schools |
| 48481 | MEX: TABASCO, very small schools |
| 48482 | MEX: TAMAULIPAS, large schools |
| 48483 | MEX: TAMAULIPAS, moderately small schools |
| 48484 | MEX: TAMAULIPAS, very small schools |
| 48485 | MEX: TLAXCALA, large schools |
| 48486 | MEX: TLAXCALA, moderately small schools |
| 48487 | MEX: TLAXCALA, very small schools |
| 48488 | MEX: VERACRUZ IGNACIO DE LA LLAVE, large schools |
| 48489 | MEX: VERACRUZ IGNACIO DE LA LLAVE, moderately small schools |
| 48490 | MEX: VERACRUZ IGNACIO DE LA LLAVE, very small schools |
| 48491 | MEX: YUCATAN, large schools |
| 48492 | MEX: YUCATAN, moderately small schools |
| 48493 | MEX: YUCATAN, very small schools |
| 48494 | MEX: ZACATECAS, large schools |
| 48495 | MEX: ZACATECAS, moderately small schools |
| 48496 | MEX: ZACATECAS, very small schools |
| 48497 | MEX: Stratum 97 |
| 49901 | MNE: 1. academic,1. central -- 1 |
| 49902 | MNE: 1. academic,2. north -- 2 |
| 49903 | MNE: 1. academic,3. south -- 3 |
| 49904 | MNE: 2. vocational,1. central -- 4 |
| 49905 | MNE: 2. vocational,2. north -- 5 |
| 49906 | MNE: 2. vocational,3. south -- 6 |
| 49908 | MNE: 3. mixed,2. north -- 8 |
| 49909 | MNE: 3. mixed,3. south -- 9 |
| 49910 | MNE: 4. general,1. central -- 10 |
| 49911 | MNE: 4. general,2. north -- 11 |
| 49912 | MNE: 4. general,3. south -- 12 |
| 52801 | NLD: 01: PRO/VMBO in rest of NLD |
| 52802 | NLD: 02: HAVO/VWO in rest of NLD |
| 52803 | NLD: 03: PRO/VMBO in Limburg |
| 52804 | NLD: 04: HAVO/VWO in Limburg |
| 55401 | NZL: All Schools |
| 55402 | NZL: Stratum 2 |
| 57801 | NOR: Upper Secondary |
| 57802 | NOR: Lower secondary |
| 59101 | PAN: Urban/Public |
| 59102 | PAN: Urban/Private |
| 59103 | PAN: Rural/Public |
| 59104 | PAN: Stratum 4 |
| 60401 | PER: Public/Urban |
| 60402 | PER: Public/Rural |
| 60403 | PER: Private/Urban |
| 60404 | PER: Private/Rural |
| 61601 | POL: Public Gymnasia |
| 61602 | POL: Private Gymnasia |
| 61603 | POL: Lyceum |
| 61604 | POL: Vocational |
| 62001 | PRT: 01: Alentejo - Alentejo Central |
| 62002 | PRT: 02: Alentejo - Alentejo Litoral |
| 62003 | PRT: 03: Alentejo - Alto Alentejo |
| 62004 | PRT: 04: Alentejo - Baixo Alentejo |
| 62005 | PRT: 05: Alentejo - Lezíria do Tejo |
| 62006 | PRT: 06: Algarve - Algarve |
| 62007 | PRT: 07: Centro - Baixo Mondego |
| 62008 | PRT: 08: Centro - Baixo Vouga |
| 62009 | PRT: 09: Centro - Beira Interior Norte |
| 62010 | PRT: 10: Centro - Beira Interior Sul |
| 62011 | PRT: 11: Centro - Cova da Beira |
| 62012 | PRT: 12: Centro - Dão Lafões |
| 62013 | PRT: 13: Centro - Médio Tejo |
| 62014 | PRT: 14: Centro - Oeste |
| 62015 | PRT: 15: Centro - Pinhal Interior Norte |
| 62016 | PRT: 16: Centro - Pinhal Interior Sul |
| 62017 | PRT: 17: Centro - Pinhal Litoral |
| 62018 | PRT: 18: Centro - Serra da Estrela |
| 62019 | PRT: 19: Lisboa - Grande Lisboa |
| 62020 | PRT: 20: Lisboa - Península de Setúbal |
| 62021 | PRT: 21: Norte - Alto Trás-os-Montes |
| 62022 | PRT: 22: Norte - Ave |
| 62023 | PRT: 23: Norte - Cávado |
| 62024 | PRT: 24: Norte - Douro |
| 62025 | PRT: 25: Norte - Entre Douro e Vouga |
| 62026 | PRT: 26: Norte - Grande Porto |
| 62027 | PRT: 27: Norte - Minho Lima |
| 62028 | PRT: 28: Norte - Tâmega |
| 62029 | PRT: 29: Região Autónoma da Madeira |
| 62030 | PRT: 30: Região Autónoma dos Açores |
| 62031 | PRT: Stratum 31 |
| 63401 | QAT: 1. Public |
| 63402 | QAT: 2. Public/complex |
| 63403 | QAT: 3. Independent |
| 63404 | QAT: 4. Independent/complex |
| 63405 | QAT: 5. Community |
| 63406 | QAT: 6. International |
| 63407 | QAT: 7. Private |
| 63408 | QAT: 8. Private/complex |
| 64201 | ROU: 01: GIM |
| 64202 | ROU: 02: SAM |
| 64203 | ROU: 03: LIC |
| 64301 | RUS: Republic of Adygeya |
| 64303 | RUS: Republic of Bashkortostan |
| 64305 | RUS: Republic of Dagestan |
| 64310 | RUS: Republic of Karelia |
| 64311 | RUS: Republic of Komi |
| 64312 | RUS: Republic of Marij El |
| 64314 | RUS: Republic of Sakha (Yakutia) |
| 64316 | RUS: Republic of Tatarstan |
| 64318 | RUS: Udmurtian Republic |
| 64321 | RUS: Chuvashi Republic |
| 64322 | RUS: Altai territory |
| 64323 | RUS: Krasnodar territory |
| 64324 | RUS: Krasnoyarsk territory |
| 64325 | RUS: Primorie territory |
| 64326 | RUS: Stavropol territory |
| 64330 | RUS: Astrakhan region |
| 64333 | RUS: Vladimir region |
| 64334 | RUS: Volgograd region |
| 64335 | RUS: Vologda region |
| 64336 | RUS: Voronezh region |
| 64340 | RUS: Kaluga region |
| 64342 | RUS: Kemerovo region |
| 64346 | RUS: Kursk region |
| 64350 | RUS: Moscow region |
| 64352 | RUS: Nizhnij Novgorod region |
| 64354 | RUS: Novosibirsk region |
| 64355 | RUS: Omsk region |
| 64356 | RUS: Orenburg region |
| 64359 | RUS: Perm territory |
| 64361 | RUS: Rostov region |
| 64362 | RUS: Ryazan region |
| 64363 | RUS: Samara region |
| 64364 | RUS: Saratov region |
| 64365 | RUS: Sakhalin region |
| 64366 | RUS: Sverdlovsk region |
| 64368 | RUS: Tambov region |
| 64370 | RUS: Tomsk region |
| 64371 | RUS: Tula region |
| 64372 | RUS: Tyumen region |
| 64373 | RUS: Ulyanovsk region |
| 64374 | RUS: Chelyabinsk region |
| 64375 | RUS: Chita region |
| 64377 | RUS: The City of Moscow |
| 64378 | RUS: The City of Saint-Petersburg |
| 64386 | RUS: Khanty-Mansijsk autonomous district - Yugra |
| 68812 | SRB: North Vojvodina,Gymnasium |
| 68813 | SRB: North Vojvodina,Technical |
| 68814 | SRB: North Vojvodina,Medical |
| 68815 | SRB: North Vojvodina,Economic |
| 68816 | SRB: North Vojvodina,Agricultural |
| 68817 | SRB: North Vojvodina,Art |
| 68818 | SRB: North Vojvodina,Mixed |
| 68822 | SRB: South Vojvodina,Gymnasium |
| 68823 | SRB: South Vojvodina,Technical |
| 68824 | SRB: South Vojvodina,Medical |
| 68825 | SRB: South Vojvodina,Economic |
| 68826 | SRB: South Vojvodina,Agricultural |
| 68827 | SRB: South Vojvodina,Art |
| 68828 | SRB: South Vojvodina,Mixed |
| 68832 | SRB: Belgrade,Gymnasium |
| 68833 | SRB: Belgrade,Technical |
| 68834 | SRB: Belgrade,Medical |
| 68835 | SRB: Belgrade,Economic |
| 68836 | SRB: Belgrade,Agricultural |
| 68837 | SRB: Belgrade,Art |
| 68838 | SRB: Belgrade,Mixed |
| 68842 | SRB: Stig,Gymnasium |
| 68843 | SRB: Stig,Technical |
| 68844 | SRB: Stig,Medical |
| 68845 | SRB: Stig,Economic |
| 68846 | SRB: Stig,Agricultural |
| 68847 | SRB: Stig,Art |
| 68848 | SRB: Stig,Mixed |
| 68852 | SRB: Western Serbia,Gymnasium |
| 68853 | SRB: Western Serbia,Technical |
| 68854 | SRB: Western Serbia,Medical |
| 68855 | SRB: Western Serbia,Economic |
| 68856 | SRB: Western Serbia,Agricultural |
| 68857 | SRB: Western Serbia,Art |
| 68858 | SRB: Western Serbia,Mixed |
| 68862 | SRB: Central Serbia,Gymnasium |
| 68863 | SRB: Central Serbia,Technical |
| 68864 | SRB: Central Serbia,Medical |
| 68865 | SRB: Central Serbia,Economic |
| 68866 | SRB: Central Serbia,Agricultural |
| 68867 | SRB: Central Serbia,Art |
| 68868 | SRB: Central Serbia,Mixed |
| 68872 | SRB: East Serbia,Gymnasium |
| 68873 | SRB: East Serbia,Technical |
| 68874 | SRB: East Serbia,Medical |
| 68875 | SRB: East Serbia,Economic |
| 68876 | SRB: East Serbia,Agricultural |
| 68877 | SRB: East Serbia,Arts |
| 68878 | SRB: East Serbia,Mixed |
| 68882 | SRB: Southern Serbia,Gymnasium |
| 68883 | SRB: Southern Serbia,Technical |
| 68884 | SRB: Southern Serbia,Medical |
| 68885 | SRB: Southern Serbia,Economic |
| 68886 | SRB: Southern Serbia,Agricultural |
| 68887 | SRB: Southern Serbia,Arts |
| 68888 | SRB: Southern Serbia,Mixed |
| 68890 | SRB: Primary schools |
| 68891 | SRB: Stratum 91 |
| 70201 | SGP: 1 - Public Secondary |
| 70203 | SGP: 3 – Private Secondary |
| 70301 | SVK: Region 1 / 1_ZS |
| 70302 | SVK: Region 1 / 2_GYM |
| 70303 | SVK: Region 1 / 3_others |
| 70304 | SVK: Region 2 / 1_ZS |
| 70305 | SVK: Region 2 / 2_GYM |
| 70306 | SVK: Region 2 / 3_others |
| 70307 | SVK: Region 3 / 1_ZS |
| 70308 | SVK: Region 3 / 2_GYM |
| 70309 | SVK: Region 3 / 3_others |
| 70310 | SVK: Region 4 / 1_ZS |
| 70311 | SVK: Region 4 / 2_GYM |
| 70312 | SVK: Region 4 / 3_others |
| 70313 | SVK: Region 5 / 1_ZS |
| 70314 | SVK: Region 5 / 2_GYM |
| 70315 | SVK: Region 5 / 3_others |
| 70316 | SVK: Region 6 / 1_ZS |
| 70317 | SVK: Region 6 / 2_GYM |
| 70318 | SVK: Region 6 / 3_others |
| 70319 | SVK: Region 7 / 1_ZS |
| 70320 | SVK: Region 7 / 2_GYM |
| 70321 | SVK: Region 7 / 3_others |
| 70322 | SVK: Region 8 / 1_ZS |
| 70323 | SVK: Region 8 / 2_GYM |
| 70324 | SVK: Region 8 / 3_others |
| 70501 | SVN: GIMg - gymnasia general |
| 70502 | SVN: GIMs - gymnasia specialist |
| 70503 | SVN: STSI - technical educational programmes |
| 70504 | SVN: SPI - vocational of medium duration |
| 70505 | SVN: NPI - vocational of short duration |
| 70506 | SVN: OS - elementary school |
| 70508 | SVN: Adult Education Institutes |
| 72401 | ESP: Andalusia, public, E |
| 72402 | ESP: Andalusia, private, E |
| 72403 | ESP: Aragon, public, E |
| 72404 | ESP: Aragon, private, E |
| 72405 | ESP: Asturias, public, E |
| 72406 | ESP: Asturias, private, E |
| 72407 | ESP: BalearicIslands, public, E |
| 72408 | ESP: BalearicIslands, private, E |
| 72409 | ESP: CanaryIslands, public, E |
| 72410 | ESP: CanaryIslands, private, E |
| 72411 | ESP: Cantabria, public, E |
| 72412 | ESP: Cantabria, private, E |
| 72413 | ESP: CastileandLeon, public, E |
| 72414 | ESP: CastileandLeon, private, E |
| 72415 | ESP: Castile-LaMancha, public, E |
| 72416 | ESP: Castile-LaMancha, private, E |
| 72417 | ESP: Catalonia, public, E |
| 72418 | ESP: Catalonia, private, E |
| 72419 | ESP: Extremadura, public, E |
| 72420 | ESP: Extremadura, private, E |
| 72421 | ESP: Galicia, public, E |
| 72422 | ESP: Galicia, private, E |
| 72423 | ESP: LaRioja, public, E |
| 72424 | ESP: LaRioja, private, E |
| 72425 | ESP: Madrid, public, E |
| 72426 | ESP: Madrid, private, E |
| 72427 | ESP: Murcia, public, E |
| 72428 | ESP: Murcia, private, E |
| 72429 | ESP: Navarra, public, E |
| 72430 | ESP: Navarra, private, E |
| 72431 | ESP: BasqueCountry, public, A |
| 72432 | ESP: BasqueCountry, public, B |
| 72433 | ESP: BasqueCountry, public, C |
| 72434 | ESP: BasqueCountry, private, A |
| 72435 | ESP: BasqueCountry, private, B |
| 72436 | ESP: BasqueCountry, private, C |
| 72437 | ESP: Valencia, public, E |
| 72438 | ESP: Valencia, private, E |
| 72439 | ESP: CeutaandMelilla, public, E |
| 72440 | ESP: CeutaandMelilla, private, E |
| 72441 | ESP: Stratum 41 |
| 75201 | SWE: PUB/ LOWER SEC/ METRO |
| 75202 | SWE: PUB/ LOWER SEC/ OTHER LARGE |
| 75203 | SWE: PUB/ LOWER SEC/ AT LEAST 12500 |
| 75204 | SWE: PUB/ LOWER SEC/ MANUFACURING |
| 75205 | SWE: PUB/ LOWER SEC/ SPARSE POP |
| 75206 | SWE: PUB/ UPPER SEC |
| 75207 | SWE: INDEP/ LOWER SEC/ METRO |
| 75208 | SWE: INDEP/ LOWER SEC/ OTHER LARGE |
| 75209 | SWE: INDEP/ LOWER SEC/ AT LEAST 12500 |
| 75210 | SWE: INDEP/ LOWER SEC/ MANUFACURING |
| 75211 | SWE: INDEP/ LOWER SEC/ SPARSE POP |
| 75212 | SWE: INDEP/ UPPER SEC |
| 75601 | CHE: AG.gr9.pub. |
| 75602 | CHE: AR.gr9.pub. |
| 75603 | CHE: BE(d).gr9.pub. |
| 75604 | CHE: SG.gr9.pub. |
| 75605 | CHE: SH.gr9.pub. |
| 75607 | CHE: VS(d).gr9.pub. |
| 75608 | CHE: D-Rest.gr9.pub. |
| 75609 | CHE: D-CH.other.v1. |
| 75610 | CHE: D-CH.other.v2. |
| 75611 | CHE: D-CH.other.v3. |
| 75612 | CHE: D-CH.other.b. |
| 75613 | CHE: D-CH.gr9.priv. |
| 75614 | CHE: BE(f).gr9.pub. |
| 75615 | CHE: FR(f).gr9.pub. |
| 75616 | CHE: GE.gr9.pub. |
| 75617 | CHE: JU.gr9.pub. |
| 75618 | CHE: NE.gr9.pub. |
| 75619 | CHE: VD.gr9.pub. |
| 75620 | CHE: VS(f).gr9.pub. |
| 75621 | CHE: F-CH.other.v1. |
| 75622 | CHE: F-CH.other.v2. |
| 75623 | CHE: F-CH.other.v3. |
| 75624 | CHE: F-CH.other.b. |
| 75625 | CHE: F-CH.gr9.priv. |
| 75626 | CHE: I-CH.gr9.pub. |
| 75627 | CHE: I-CH.other.v. |
| 75628 | CHE: I-CH.other.b. |
| 75629 | CHE: I-CH.gr9.priv. |
| 75661 | CHE: ZH.gr9.pub.(30.1,30.15,31) |
| 75662 | CHE: ZH.gr9.pub.(12,12.1) |
| 75663 | CHE: ZH.gr9.pub.(13,13.2,14,14.1,16) |
| 75664 | CHE: Stratum 64 |
| 76401 | THA: Office of the Basic Education Commission/Lower secondar |
| 76402 | THA: Office of the Basic Education Commission/Upper secondar |
| 76403 | THA: Office of the Basic Education Commission/Mixed |
| 76404 | THA: Office of the Private Education Commission/Lower Second |
| 76405 | THA: Office of the Private Education Commission/ Upper Secon |
| 76406 | THA: Office of the Private Education Commission/ Mixed |
| 76407 | THA: Department of Education of Bangkok Metropolitan Adminis |
| 76408 | THA: Department of Education of Bangkok Metropolitan Adminis |
| 76409 | THA: Bureau of Local Educational Development and Co-ordinati |
| 76410 | THA: Bureau of Local Educational Development and Co-ordinati |
| 76411 | THA: Bureau of Local Educational Development and Co-ordinati |
| 76412 | THA: Commission of Higher Education/Lower secondary |
| 76413 | THA: Commission of Higher Education/Mixed |
| 76414 | THA: Vocational Education Commission/ Upper Secondary |
| 76415 | THA: Stratum 15 |
| 78001 | TTO: Caroni/Religious |
| 78002 | TTO: Caroni/Secular |
| 78003 | TTO: Caroni/Private |
| 78004 | TTO: North Eastern/Religious |
| 78005 | TTO: North Eastern/Secular |
| 78006 | TTO: North Eastern/Private |
| 78007 | TTO: Port of Spain/Religious |
| 78008 | TTO: Port of Spain/Secular |
| 78009 | TTO: Port of Spain/Private |
| 78010 | TTO: St. George East/Religious |
| 78011 | TTO: St. George East/Secular |
| 78012 | TTO: St. George East/Private |
| 78013 | TTO: St. Patrick/Religious |
| 78014 | TTO: St. Patrick/Secular |
| 78015 | TTO: South Eastern/Religious |
| 78016 | TTO: South Eastern/Secular |
| 78017 | TTO: South Eastern/Private |
| 78018 | TTO: Victoria/Religious |
| 78019 | TTO: Victoria/Secular |
| 78020 | TTO: Victoria/Private |
| 78021 | TTO: Tobago/Religious |
| 78022 | TTO: Tobago/Secular |
| 78023 | TTO: Tobago/Religious |
| 78401 | QAR: National – Public - Arabic |
| 78402 | QAR: UK - Public- English |
| 78403 | QAR: National – Private - Arabic |
| 78404 | QAR: US - English |
| 78405 | QAR: UK - English |
| 78406 | QAR: Indian - English |
| 78407 | QAR: Pakistani - English |
| 78408 | QAR: IB - English |
| 78409 | QAR: Other - English |
| 78801 | TUN: East - ISCED 2 only - Private |
| 78802 | TUN: East - ISCED 3 & Mixed - Private |
| 78803 | TUN: North/West - ISCED 3 & Mixed - Private |
| 78804 | TUN: South/West - ISCED 3 & Mixed - Private |
| 78805 | TUN: North/East - ISCED 2 only - Public |
| 78806 | TUN: North/East - ISCED 3 only - Public |
| 78807 | TUN: North/East - Mixed - Public |
| 78808 | TUN: North/West - ISCED 2 only - Public |
| 78809 | TUN: North/West - ISCED 3 only - Public |
| 78810 | TUN: North/West - Mixed - Public |
| 78811 | TUN: South/East - ISCED 2 only - Public |
| 78812 | TUN: South/East - ISCED 3 only - Public |
| 78813 | TUN: South/East - Mixed - Public |
| 78814 | TUN: South/West - ISCED 2 only - Public |
| 78815 | TUN: South/West - ISCED 3 only - Public |
| 78816 | TUN: South/West - Mixed - Public |
| 79201 | TUR: TR1 PRIMARY |
| 79202 | TUR: TR1 GENERAL SECONDARY |
| 79203 | TUR: TR1 VOCATIONAL AND TECHNICAL SECONDARY |
| 79204 | TUR: TR2 PRIMARY |
| 79205 | TUR: TR2 GENERAL SECONDARY |
| 79206 | TUR: TR2 VOCATIONAL AND TECHNICAL SECONDARY |
| 79207 | TUR: TR3 PRIMARY |
| 79208 | TUR: TR3 GENERAL SECONDARY |
| 79209 | TUR: TR3 VOCATIONAL AND TECHNICAL SECONDARY |
| 79210 | TUR: TR4 PRIMARY |
| 79211 | TUR: TR4 GENERAL SECONDARY |
| 79212 | TUR: TR4 VOCATIONAL AND TECHNICAL SECONDARY |
| 79213 | TUR: TR5 PRIMARY |
| 79214 | TUR: TR5 GENERAL SECONDARY |
| 79215 | TUR: TR5 VOCATIONAL AND TECHNICAL SECONDARY |
| 79216 | TUR: TR6 PRIMARY |
| 79217 | TUR: TR6 GENERAL SECONDARY |
| 79218 | TUR: TR6 VOCATIONAL AND TECHNICAL SECONDARY |
| 79219 | TUR: TR7 PRIMARY |
| 79220 | TUR: TR7 GENERAL SECONDARY |
| 79221 | TUR: TR7 VOCATIONAL AND TECHNICAL SECONDARY |
| 79222 | TUR: TR8 PRIMARY |
| 79223 | TUR: TR8 GENERAL SECONDARY |
| 79224 | TUR: TR8 VOCATIONAL AND TECHNICAL SECONDARY |
| 79225 | TUR: TR9 PRIMARY |
| 79226 | TUR: TR9 GENERAL SECONDARY |
| 79227 | TUR: TR9 VOCATIONAL AND TECHNICAL SECONDARY |
| 79228 | TUR: TRA PRIMARY |
| 79229 | TUR: TRA GENERAL SECONDARY |
| 79230 | TUR: TRA VOCATIONAL AND TECHNICAL SECONDARY |
| 79231 | TUR: TRB PRIMARY |
| 79232 | TUR: TRB GENERAL SECONDARY |
| 79233 | TUR: TRB VOCATIONAL AND TECHNICAL SECONDARY |
| 79234 | TUR: TRC PRIMARY |
| 79235 | TUR: TRC GENERAL SECONDARY |
| 79236 | TUR: TRC VOCATIONAL AND TECHNICAL SECONDARY |
| 82601 | GBR: England/Maintained selective/North |
| 82602 | GBR: England/Maintained selective/Midlands |
| 82603 | GBR: England/Maintained selective/South |
| 82604 | GBR: England/Maintained selective/London |
| 82605 | GBR: England/Maintained non-selective/North |
| 82606 | GBR: England/Maintained non-selective/Midlands |
| 82607 | GBR: England/Maintained non-selective/South |
| 82608 | GBR: England/Maintained non-selective/London |
| 82609 | GBR: England/Independent/North |
| 82610 | GBR: England/Independent/Midlands |
| 82611 | GBR: England/Independent/South |
| 82612 | GBR: England/Independent/London |
| 82613 | GBR: NI/ Maintained selective/Belfast |
| 82614 | GBR: NI/ Maintained selective/Western |
| 82615 | GBR: NI/ Maintained selective/North Eastern |
| 82616 | GBR: NI/ Maintained selective/South Eastern |
| 82617 | GBR: NI/ Maintained selective/Southern |
| 82618 | GBR: NI/ Maintained non-selective/Belfast |
| 82619 | GBR: NI/ Maintained non-selective/Western |
| 82620 | GBR: NI/ Maintained non-selective/North Eastern |
| 82621 | GBR: NI/ Maintained non-selective/South Eastern |
| 82622 | GBR: NI/ Maintained non-selective/Southern |
| 82623 | GBR: NI/ Independent |
| 82624 | GBR: Wales/Maintained/North |
| 82625 | GBR: Wales/Maintained/Powys and South West |
| 82626 | GBR: Wales/Maintained/South East |
| 82627 | GBR: Wales/Independent/North |
| 82628 | GBR: Wales/Independent/Powys and South West |
| 82629 | GBR: Wales/Independent/South East |
| 82630 | GBR: Stratum 30 |
| 82681 | GBR: Scotland/Sch. Attain. Lev. 1 |
| 82682 | GBR: Scotland/Sch. Attain. Lev. 2 |
| 82683 | GBR: Scotland/Sch. Attain. Lev. 3 |
| 82684 | GBR: Scotland/Sch. Attain. Lev. 4 |
| 82685 | GBR: Scotland/Sch. Attain. Lev. 5 |
| 82686 | GBR: Scotland/Sch. Attain. Lev. 6 |
| 84001 | USA: Public Northeast |
| 84002 | USA: Public Midwest |
| 84003 | USA: Public South |
| 84004 | USA: Public West |
| 84005 | USA: Private Northeast |
| 84006 | USA: Private Midwest |
| 84007 | USA: Private South |
| 84008 | USA: Private West |
| 85801 | URY: Private General Secondary Education - Metropolitan Area |
| 85802 | URY: Private General Secondary Education - Province Capitals |
| 85803 | URY: Private General Secondary Education - Province Capitals |
| 85804 | URY: Private General Secondary Education - Rural areas - no |
| 85805 | URY: Private General Secondary Education - Small cities - n |
| 85806 | URY: Public General Secondary Education - Metropolitan Area |
| 85807 | URY: Public General Secondary Education - Province Capitals |
| 85808 | URY: Public General Secondary Education - Province Capitals |
| 85809 | URY: Public General Secondary Education - Rural areas - bor |
| 85810 | URY: Public General Secondary Education - Rural areas - not |
| 85811 | URY: Public General Secondary Education - Small cities - bo |
| 85812 | URY: Public General Secondary Education - Small cities - no |
| 85813 | URY: Public Technical Education - Metropolitan Area of Monte |
| 85814 | URY: Public Technical Education - Province Capitals - border |
| 85815 | URY: Public Technical Education - Province Capitals - not bo |
| 85816 | URY: Public Technical Education - Rural areas - border with |
| 85817 | URY: Public Technical Education - Rural areas - not border |
| 85818 | URY: Public Technical Education - Small cities - border wit |
| 85819 | URY: Public Technical Education - Small cities - not border |
| 85820 | URY: Rural Schools with Lower Secondary Degree - Rural areas |
| 85821 | URY: Rural Schools with Lower Secondary Degree - Rural areas |
| 85822 | URY: Stratum 22 |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.