| Value | Category |
|---|---|
| -9 | Don't know |
| -8 | Refused |
| -5 | Not Applicable |
| -3 | Missing |
| -2 | Not asked in Phase 2 |
| 100 | |
| 120 | |
| 150 | |
| 320 | |
| 375 | |
| 400 | |
| 477 | |
| 600 | |
| 679 | |
| 750 | |
| 762 | |
| 800 | |
| 815 | |
| 938 | |
| 1000 | |
| 1100 | |
| 1200 | |
| 1300 | |
| 1500 | |
| 1700 | |
| 2000 | |
| 2037 | |
| 2400 | |
| 2500 | |
| 2520 | |
| 2721 | |
| 3000 | |
| 3028 | |
| 4000 | |
| 4498 | |
| 4500 | |
| 5000 | |
| 6000 | |
| 6182 | |
| 7000 | |
| 10000 | |
| 14000 | |
| 15000 | |
| 17000 | |
| 22000 | |
| 40000 | |
| 46000 | |
| 70000 | |
| 75000 | |
| 100004 | |
| Sysmiss |