| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 228 |
24.6%
|
| 2 | no | 555 |
59.9%
|
| 3 | (dk) | 133 |
14.4%
|
| 4 | (ref) | 10 |
1.1%
|
| Sysmiss | 75 |