| Value | Category |
|---|---|
| -9 | Don't know |
| -8 | Refused |
| -5 | Not Applicable |
| -3 | Missing |
| 5 | |
| 6 | |
| 8 | |
| 10 | |
| 12 | |
| 15 | |
| 17 | |
| 18 | |
| 20 | |
| 22 | |
| 24 | |
| 25 | |
| 26 | |
| 28 | |
| 30 | |
| 32 | |
| 33 | |
| 34 | |
| 35 | |
| 36 | |
| 40 | |
| 45 | |
| 47 | |
| 50 | |
| 51 | |
| 52 | |
| 54 | |
| 55 | |
| 60 | |
| 70 | |
| 71 | |
| 75 | |
| 80 | |
| 90 | |
| 95 | |
| 98 | |
| 100 | |
| 114 | |
| 120 | |
| 130 | |
| 131 | |
| 140 | |
| 145 | |
| 150 | |
| 158 | |
| 160 | |
| 167 | |
| 174 | |
| 180 | |
| 190 | |
| 200 | |
| 240 | |
| 250 | |
| 269 | |
| 280 | |
| 300 | |
| 320 | |
| 375 | |
| 380 | |
| 383 | |
| 400 | |
| 480 | |
| 500 | |
| 600 | |
| 800 | |
| 950 | |
| 1000 | |
| 1500 | |
| 1600 | |
| 1950 | |
| 2000 | |
| 2182 | |
| Sysmiss |