| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 34 |
75.6%
|
| -1 | refuse | 0 |
0%
|
| 1 | 530-3500 | 5 |
11.1%
|
| 2 | 3501-10000 | 6 |
13.3%
|
| Sysmiss | 1004 |