| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 234 |
39.6%
|
| 2 | no | 315 |
53.3%
|
| 3 | (dk) | 40 |
6.8%
|
| 4 | (ref) | 2 |
0.3%
|
| Sysmiss | 409 |