| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 24 |
15.8%
|
| 2 | no | 123 |
80.9%
|
| 3 | (dk) | 2 |
1.3%
|
| 4 | (ref) | 3 |
2%
|
| Sysmiss | 849 |