| Value |
Category |
| 110 |
None |
| 200 |
Pre-school, unknown grade |
| 201 |
Pre-school grade 1 |
| 202 |
Pre-school grade 2 |
| 203 |
Pre-school grade 3 |
| 300 |
Basic/elementary, uknown grade |
| 301 |
Basic/elementary grade 1 |
| 302 |
Basic/elementary grade 2 |
| 303 |
Basic/elementary grade 3 |
| 304 |
Basic/elementary grade 4 |
| 305 |
Basic/elementary grade 5 |
| 306 |
Basic/elementary grade 6 |
| 307 |
Basic/elementary grade 7 |
| 308 |
Basic/elementary grade 8 |
| 309 |
Basic/elementary grade 9 |
| 410 |
Special education |
| 500 |
Middle school, unknown grade |
| 501 |
Middle school grade 1 |
| 502 |
Middle school grade 2 |
| 600 |
Technical middle school, unknown grade |
| 601 |
Technical middle school grade 1 |
| 602 |
Technical middle school grade 2 |
| 603 |
Technical middle school grade 3 |
| 800 |
Superior technical education level 0 |
| 801 |
Superior technical education level 1 |
| 802 |
Superior technical education level 2 |
| 803 |
Superior technical education level 3 |
| 804 |
Superior technical education, unknown level |
| 900 |
University level 0 |
| 901 |
University level 1 |
| 902 |
University level 2 |
| 903 |
University level 3 |
| 904 |
University level 4 |
| 905 |
University level 5 |
| 906 |
University level 6 |
| 907 |
University level 7 |
| 908 |
University, unknown level |
| 998 |
Unknown |
| 999 |
NIU (not in universe) |
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.