| Value | Category |
|---|---|
| -99 | Refuse to answer |
| -98 | Difficult to answer/Don't remember |
| -97 | Don't know/No information |
| -9 | Interrupted interview |
| -7 | Legal Skip |
| -3 | Interviewer error |
| 0 | |
| 3 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 10 | |
| 11 | |
| 13 | |
| 15 | |
| 20 | |
| 23 | |
| 25 | |
| 30 | |
| 35 | |
| 39 | |
| 40 | |
| 45 | |
| 50 | |
| 56 | |
| 60 | |
| 65 | |
| 70 | |
| 75 | |
| 80 | |
| 85 | |
| 90 | |
| 100 | |
| 110 | |
| 120 | |
| 130 | |
| 140 | |
| 150 | |
| 160 | |
| 170 | |
| 180 | |
| 190 | |
| 200 | |
| 210 | |
| 220 | |
| 230 | |
| 250 | |
| 300 | |
| 320 | |
| 350 | |
| 360 | |
| 400 | |
| 500 | |
| 600 | |
| 2500 |