| Value | Category |
|---|---|
| -9 | Don't know (spontaneous) |
| -8 | Refusal (spontaneous) |
| -7 | Does not apply |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 15 | |
| 27 | |
| 28 | |
| 30 | |
| 44 | |
| 61 | |
| 62 | |
| 63 | |
| 121 | |
| 601 | |
| 602 | |
| 1010 | |
| 1020 | |
| 1030 | |
| 1040 | |
| 1050 | |
| 1060 | |
| 1070 | |
| 1080 | |
| 1090 | |
| 2501 | |
| 2502 | |
| 2503 | |
| 2504 | |
| 2506 | |
| 2701 | |
| 3101 | |
| 4602 | |
| 6644 | |
| 9999 | |
| 21001 | |
| 21002 | |
| 2510121 |