| Value | Category |
|---|---|
| -9 | Don't know |
| -8 | Refused |
| -5 | Not Applicable |
| -3 | Missing |
| 0 | |
| 6 | |
| 7 | |
| 8 | |
| 10 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 17 | |
| 18 | |
| 19 | |
| 20 | |
| 21 | |
| 22 | |
| 23 | |
| 24 | |
| 25 | |
| 27 | |
| 28 | |
| 29 | |
| 30 | |
| 35 | |
| 36 | |
| 38 | |
| 39 | |
| 40 | |
| 42 | |
| 45 | |
| 48 | |
| 49 | |
| 50 | |
| 52 | |
| 54 | |
| 55 | |
| 56 | |
| 58 | |
| 59 | |
| 60 | |
| 63 | |
| 64 | |
| 65 | |
| 68 | |
| 69 | |
| 70 | |
| 72 | |
| 73 | |
| 74 | |
| 75 | |
| 76 | |
| 78 | |
| 79 | |
| 80 | |
| 84 | |
| 85 | |
| 89 | |
| 90 | |
| 93 | |
| 95 | |
| 96 | |
| 98 | |
| 99 | |
| 100 | |
| 105 | |
| 106 | |
| 110 | |
| 115 | |
| 120 | |
| 125 | |
| 130 | |
| 140 | |
| 149 | |
| 150 | |
| 170 | |
| 185 | |
| 189 | |
| 190 | |
| 200 | |
| 250 | |
| 300 | |
| 500 | |
| Sysmiss |