| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 38 |
21%
|
| 2 | no | 135 |
74.6%
|
| 3 | (dk) | 2 |
1.1%
|
| 4 | (ref) | 6 |
3.3%
|
| Sysmiss | 819 |