| Value | Category |
|---|---|
| -9 | Don't know |
| -8 | Refused |
| -5 | Not Applicable |
| -3 | Missing |
| 4 | |
| 5 | |
| 6 | |
| 10 | |
| 13 | |
| 20 | |
| 25 | |
| 30 | |
| 34 | |
| 35 | |
| 38 | |
| 40 | |
| 49 | |
| 50 | |
| 54 | |
| 60 | |
| 70 | |
| 80 | |
| 90 | |
| 98 | |
| 100 | |
| 120 | |
| 140 | |
| 150 | |
| 160 | |
| 200 | |
| 220 | |
| 225 | |
| 230 | |
| 245 | |
| 250 | |
| 270 | |
| 280 | |
| 300 | |
| 350 | |
| 400 | |
| 450 | |
| 500 | |
| 600 | |
| 700 | |
| 800 | |
| 1000 | |
| 1050 | |
| 1200 | |
| 1500 | |
| 1700 | |
| 2000 | |
| 3000 | |
| Sysmiss |