| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 3 |
2.9%
|
| -7 | not applicable | 7 |
6.7%
|
| 1 | yes | 56 |
53.3%
|
| 2 | no | 39 |
37.1%
|
| Sysmiss | 981 |