| Value | Category |
|---|---|
| -9 | Don't Know |
| -8 | Refused |
| -5 | Not Applicable |
| -3 | Missing |
| -2 | Not asked in Phase 2 |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 9 | |
| 20 | |
| 22 | |
| 25 | |
| 30 | |
| 35 | |
| 40 | |
| 45 | |
| 50 | |
| 60 | |
| 65 | |
| 75 | |
| 80 | |
| 90 | |
| 100 | |
| 120 | |
| 140 | |
| 150 | |
| 160 | |
| 190 | |
| 200 | |
| 240 | |
| 300 | |
| 335 | |
| 350 | |
| 360 | |
| 400 | |
| 450 | |
| 500 | |
| 600 | |
| 720 | |
| 750 | |
| 800 | |
| 900 | |
| 1000 | |
| 1200 | |
| 2000 | |
| 2500 | |
| 3600 | |
| 5000 | |
| 5500 | |
| 8000 | |
| 23000 | |
| 25000 | |
| 30000 | |
| 45000 | |
| 82000 | |
| Sysmiss |