| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 39 |
81.3%
|
| 1 | Yes | 0 |
0%
|
| 8 | dk | 4 |
8.3%
|
| 9 | No response | 5 |
10.4%
|
| Sysmiss | 28 |