| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 106 |
24.7%
|
| 2 | no | 298 |
69.3%
|
| 3 | (dk) | 22 |
5.1%
|
| 4 | (ref) | 4 |
0.9%
|
| Sysmiss | 570 |