| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 1 |
2.1%
|
| -1 | refuse | 2 |
4.3%
|
| 0 | 23 |
48.9%
|
|
| 1 | 0.5-10 | 9 |
19.1%
|
| 2 | 11-3000 | 12 |
25.5%
|
| Sysmiss | 1002 |