| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 0 |
0%
|
| -1 | refuse | 0 |
0%
|
| 1 | 0-10 | 5 |
50%
|
| 2 | 11-12000 | 5 |
50%
|
| Sysmiss | 1039 |