| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 76 |
18.3%
|
| 2 | no | 322 |
77.6%
|
| 3 | (dk) | 14 |
3.4%
|
| 4 | (ref) | 3 |
0.7%
|
| Sysmiss | 585 |