| Value | Category |
|---|---|
| -5 | other |
| -4 | missing data |
| -3 | refused to answer |
| -2 | not applicable |
| -1 | do not know |
| 0 | |
| 80 | |
| 100 | |
| 107 | |
| 132 | |
| 150 | |
| 199.25 | |
| 200 | |
| 270 | |
| 300 | |
| 350 | |
| 370 | |
| 400 | |
| 403 | |
| 408 | |
| 412 | |
| 430 | |
| 450 | |
| 460 | |
| 480 | |
| 481 | |
| 482 | |
| 500 | |
| 512 | |
| 515 | |
| 523 | |
| 580 | |
| 594 | |
| 600 | |
| 621 | |
| 700 | |
| 927 | |
| 1200 | |
| 1400 | |
| 1600 | |
| 2000 | |
| 8050 | |
| 22000 | |
| 36000 | |
| 210000 |