| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 40 |
40.4%
|
| 2 | no | 54 |
54.5%
|
| 3 | (dk) | 2 |
2%
|
| 4 | (ref) | 3 |
3%
|
| Sysmiss | 904 |