| Value | Category |
|---|---|
| -99 | Don't know |
| -90 | Not specified by supervisor/interviewer |
| 3 | |
| 6 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 14 | |
| 15 | |
| 17 | |
| 19 | |
| 20 | |
| 21 | |
| 22 | |
| 23 | |
| 25 | |
| 26 | |
| 27 | |
| 28 | |
| 29 | |
| 30 | |
| 31 | |
| 32 | |
| 34 | |
| 35 | |
| 36 | |
| 37 | |
| 40 | |
| 41 | |
| 43 | |
| 44 | |
| 48 | |
| 50 | |
| 52 | |
| 53 | |
| 56 | |
| 58 | |
| 59 | |
| 60 | |
| 64 | |
| 65 | |
| 69 | |
| 70 | |
| 72 | |
| 75 | |
| 77 | |
| 79 | |
| 80 | |
| 86 | |
| 90 | |
| 91 | |
| 92 | |
| 95 | |
| 97 | |
| 100 | |
| 104 | |
| 122 | |
| 128 | |
| 150 | |
| 156 | |
| 171 | |
| 200 | |
| 203 | |
| 234 | |
| 270 | |
| 300 | |
| 362 | |
| 540 |