| Value | Category |
|---|---|
| -9 | Don't know |
| -8 | Refused |
| -3 | Missing |
| 2 | |
| 15 | |
| 29 | |
| 30 | |
| 50 | |
| 80 | |
| 170 | |
| 200 | |
| 250 | |
| 260 | |
| 294 | |
| 300 | |
| 350 | |
| 400 | |
| 426 | |
| 450 | |
| 480 | |
| 500 | |
| 560 | |
| 600 | |
| 719 | |
| 800 | |
| 1000 | |
| 1200 | |
| 1300 | |
| 1340 | |
| 1400 | |
| 1500 | |
| 1800 | |
| 1850 | |
| 2000 | |
| 2100 | |
| 2200 | |
| 2500 | |
| 2650 | |
| 3300 | |
| 3400 | |
| 4900 | |
| 5000 | |
| 6000 | |
| 7000 | |
| 7800 | |
| 15000 | |
| 15800 | |
| 35000 | |
| Sysmiss |