| Value | Category |
|---|---|
| -99 | Don't know |
| -90 | Not specified by supervisor/interviewer |
| 2 | |
| 3 | |
| 4 | |
| 15 | |
| 20 | |
| 25 | |
| 27 | |
| 30 | |
| 32 | |
| 35 | |
| 37 | |
| 40 | |
| 41 | |
| 45 | |
| 46 | |
| 49 | |
| 50 | |
| 53 | |
| 54 | |
| 55 | |
| 56 | |
| 58 | |
| 59 | |
| 60 | |
| 70 | |
| 74 | |
| 75 | |
| 76 | |
| 79 | |
| 80 | |
| 87 | |
| 90 | |
| 95 | |
| 96 | |
| 97 | |
| 100 | |
| 102 | |
| 105 | |
| 110 | |
| 118 | |
| 120 | |
| 126 | |
| 139 | |
| 140 | |
| 149 | |
| 150 | |
| 158 | |
| 160 | |
| 170 | |
| 172 | |
| 200 | |
| 226 | |
| 234 | |
| 320 | |
| 360 | |
| 400 | |
| 435 | |
| 542 | |
| 1530 | |
| 1537 |