| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 0 |
0%
|
| -1 | refuse | 1 |
5.6%
|
| 1 | 2-30 | 12 |
66.7%
|
| 2 | 31-2300 | 5 |
27.8%
|
| Sysmiss | 1031 |