| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 48 |
71.6%
|
| 2 | no | 16 |
23.9%
|
| 3 | (dk) | 1 |
1.5%
|
| 4 | (ref) | 2 |
3%
|
| Sysmiss | 934 |