| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 14 |
8.3%
|
| 2 | no | 147 |
87.5%
|
| 3 | (dk) | 2 |
1.2%
|
| 4 | (ref) | 5 |
3%
|
| Sysmiss | 846 |