| Value | Category | 
|---|---|
| -9 | Don't know (spontaneous) | 
| -8 | Refusal (spontaneous) | 
| -7 | Does not apply | 
| 1 | |
| 3 | |
| 6 | |
| 12 | |
| 19 | |
| 25 | |
| 30 | |
| 34 | |
| 40 | |
| 42 | |
| 48 | |
| 50 | |
| 56 | |
| 60 | |
| 65 | |
| 75 | |
| 80 | |
| 90 | |
| 100 | |
| 120 | |
| 128 | |
| 130 | |
| 150 | |
| 161 | |
| 165 | |
| 200 | |
| 230 | |
| 240 | |
| 250 | |
| 270 | |
| 300 | |
| 400 | |
| 500 | |
| 800 | |
| 931 | |
| 1000 | |
| 1200 | |
| 1500 | |
| 1800 | |
| 2600 | |
| 2900 | |
| 3000 | |
| 3600 | |
| 4000 | |
| 4300 | |
| 4700 | |
| 4800 | |
| 5300 | |
| 6100 | |
| 6200 | |
| 6700 | |
| 8100 | |
| 8800 | |
| 10000 | |
| 13800 | |
| Sysmiss |