| Value | Category |
|---|---|
| -9 | Don't Know |
| -8 | Refused |
| -5 | Not Applicable |
| -3 | Missing |
| -2 | Not asked in Phase 2 |
| 1 | |
| 2 | |
| 3 | |
| 5 | |
| 6 | |
| 9 | |
| 10 | |
| 15 | |
| 20 | |
| 30 | |
| 35 | |
| 40 | |
| 50 | |
| 56 | |
| 60 | |
| 70 | |
| 80 | |
| 89 | |
| 100 | |
| 120 | |
| 150 | |
| 170 | |
| 180 | |
| 190 | |
| 200 | |
| 250 | |
| 300 | |
| 370 | |
| 400 | |
| 480 | |
| 500 | |
| 550 | |
| 600 | |
| 650 | |
| 700 | |
| 800 | |
| 1000 | |
| 1200 | |
| 1500 | |
| 2000 | |
| 2400 | |
| 2500 | |
| 3000 | |
| 8000 | |
| 10000 | |
| 15000 | |
| Sysmiss |