| Value | Category |
|---|---|
| -9 | Don't know |
| -8 | Refused |
| -5 | Not Applicable |
| -3 | Missing |
| -2 | Not asked in Phase 2 |
| 800 | |
| 967 | |
| 1000 | |
| 1500 | |
| 1700 | |
| 2000 | |
| 2300 | |
| 4500 | |
| 5000 | |
| 7000 | |
| 9000 | |
| 10000 | |
| 13000 | |
| 15000 | |
| 18000 | |
| 20000 | |
| 25000 | |
| 35000 | |
| 36000 | |
| 40000 | |
| 45000 | |
| 45500 | |
| 60000 | |
| 61000 | |
| 72000 | |
| 96000 | |
| 241904 | |
| Sysmiss |