| Value | Category |
|---|---|
| -9 | Don't know |
| -8 | Refusal to answer |
| 0 | |
| 4 | |
| 5 | |
| 6 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 15 | |
| 18 | |
| 20 | |
| 21 | |
| 25 | |
| 30 | |
| 35 | |
| 40 | |
| 50 | |
| 60 | |
| 70 | |
| 78 | |
| 80 | |
| 85 | |
| 99 | |
| 100 | |
| 120 | |
| 130 | |
| 140 | |
| 142 | |
| 150 | |
| 180 | |
| 190 | |
| 200 | |
| 230 | |
| 238 | |
| 240 | |
| 250 | |
| 260 | |
| 280 | |
| 300 | |
| 330 | |
| 345 | |
| 350 | |
| 400 | |
| 450 | |
| 500 | |
| 600 | |
| 640 | |
| 643 | |
| 700 | |
| 750 | |
| 760 | |
| 900 | |
| 1000 | |
| 1100 | |
| 1200 | |
| 1470 | |
| 1500 | |
| 1600 | |
| 1800 | |
| 2000 | |
| 2200 | |
| 2482 | |
| 2500 | |
| 3000 | |
| 3200 | |
| 3800 | |
| 4000 | |
| 4500 | |
| 4900 | |
| 5000 | |
| 5500 | |
| 6000 | |
| 7000 | |
| 8200 | |
| 8250 | |
| 8750 | |
| 8900 | |
| 10000 | |
| 10395 | |
| 12000 | |
| 12675 | |
| 13607 | |
| 14625 | |
| 15000 | |
| 16200 | |
| 17500 | |
| 20000 | |
| 32000 | |
| 49500 | |
| 50000 | |
| 52000 | |
| 66000 | |
| 70000 | |
| 1000000 | |
| Sysmiss |