| Value | Category |
|---|---|
| -9 | Don't know (spontaneous) |
| -8 | Refusal (spontaneous) |
| -7 | Does not apply |
| 0 | |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 17 | |
| 18 | |
| 19 | |
| 20 | |
| 22 | |
| 24 | |
| 25 | |
| 26 | |
| 28 | |
| 29 | |
| 30 | |
| 31 | |
| 35 | |
| 38 | |
| 40 | |
| 41 | |
| 45 | |
| 46 | |
| 47 | |
| 50 | |
| 55 | |
| 60 | |
| 70 | |
| 80 | |
| 90 | |
| 95 | |
| 99 | |
| 100 | |
| 102 | |
| 115 | |
| 130 | |
| 135 | |
| 140 | |
| 144 | |
| 150 | |
| 170 | |
| 175 | |
| 184 | |
| 197 | |
| 200 | |
| 210 | |
| 240 | |
| 245 | |
| 250 | |
| 350 | |
| 400 | |
| 453 | |
| 555 | |
| 1300 | |
| 2250 | |
| Sysmiss |