| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 33 |
73.3%
|
| -1 | refuse | 0 |
0%
|
| 1 | 0-1500 | 6 |
13.3%
|
| 2 | 1501-12000 | 6 |
13.3%
|
| Sysmiss | 1004 |