| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 26 |
18.2%
|
| 2 | no | 111 |
77.6%
|
| 3 | (dk) | 5 |
3.5%
|
| 4 | (ref) | 1 |
0.7%
|
| Sysmiss | 860 |