| Value | Category |
|---|---|
| 0 | |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 7 | |
| 30 | |
| 59 | |
| 97 | Refused |
| 98 | Don't know |
| 99 | Missing |
| 130 | |
| 150 | |
| 165 | |
| 180 | |
| 195 | |
| 200 | |
| 250 | |
| 260 | |
| 300 | |
| 313 | |
| 325 | |
| 335 | |
| 340 | |
| 350 | |
| 360 | |
| 380 | |
| 390 | |
| 400 | |
| 420 | |
| 440 | |
| 445 | |
| 450 | |
| 455 | |
| 460 | |
| 470 | |
| 480 | |
| 500 | |
| 520 | |
| 540 | |
| 550 | |
| 585 | |
| 595 | |
| 600 | |
| 650 | |
| 670 | |
| 680 | |
| 690 | |
| 700 | |
| 715 | |
| 750 | |
| 780 | |
| 800 | |
| 840 | |
| 900 | |
| 910 | |
| 950 | |
| 970 | |
| 975 | |
| 1300 | |
| Sysmiss |