| Value | Category |
|---|---|
| -9 | Don't Know |
| -8 | Refused |
| -5 | Not Applicable |
| -3 | Missing |
| 13 | |
| 14 | |
| 20 | |
| 21 | |
| 21.5 | |
| 22 | |
| 23 | |
| 24 | |
| 25 | |
| 26 | |
| 27 | |
| 28 | |
| 29 | |
| 29.5 | |
| 30 | |
| 31 | |
| 31.5 | |
| 31.8 | |
| 32 | |
| 32.2 | |
| 32.5 | |
| 33 | |
| 33.5 | |
| 34 | |
| 34.4 | |
| 34.5 | |
| 35 | |
| 35.2 | |
| 35.5 | |
| 36 | |
| 36.5 | |
| 37 | |
| 37.5 | |
| 38 | |
| 38.5 | |
| 39 | |
| 40 | |
| 41 | |
| 42 | |
| 43 | |
| 44 | |
| 45 | |
| 46 | |
| 47 | |
| 47.5 | |
| 48 | |
| 48.5 | |
| 49 | |
| 49.5 | |
| 50 | |
| 51 | |
| 52 | |
| 53 | |
| 55 | |
| Sysmiss |