| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 26 |
48.1%
|
| 2 | no | 23 |
42.6%
|
| 3 | (dk) | 3 |
5.6%
|
| 4 | (ref) | 2 |
3.7%
|
| Sysmiss | 948 |