| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 0 |
0%
|
| -8 | does not apply | 0 |
0%
|
| -7 | refused to answer | 0 |
0%
|
| 0 | no | 20 |
32.8%
|
| 1 | yes | 41 |
67.2%
|
| Sysmiss | 695 |