| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 368 |
37.5%
|
| 2 | no | 469 |
47.8%
|
| 3 | (dk) | 142 |
14.5%
|
| 4 | (ref) | 2 |
0.2%
|
| Sysmiss | 20 |