| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 21 |
9.6%
|
| 2 | no | 182 |
83.5%
|
| 3 | (dk) | 5 |
2.3%
|
| 4 | (ref) | 10 |
4.6%
|
| Sysmiss | 782 |