| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 23 |
62.2%
|
| 2 | no | 12 |
32.4%
|
| 3 | (dk) | 2 |
5.4%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 963 |