| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 0 |
0%
|
| -1 | refuse | 2 |
4.3%
|
| 0 | 6 |
12.8%
|
|
| 1 | 0.5-150 | 39 |
83%
|
| 2 | 151-12000 | 0 |
0%
|
| Sysmiss | 1002 |