| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 18 |
7.1%
|
| 2 | No | 183 |
72.6%
|
| 8 | dk | 8 |
3.2%
|
| 9 | na | 43 |
17.1%
|
| Sysmiss | 75 |