| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 11 |
8.5%
|
| -1 | refuse | 12 |
9.3%
|
| 0 | 43 |
33.3%
|
|
| 1 | 0.8-1000 | 57 |
44.2%
|
| 2 | 1001-10000 | 5 |
3.9%
|
| 3 | 10001-200000 | 1 |
0.8%
|
| Sysmiss | 920 |