| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 142 |
35.4%
|
| 2 | no | 245 |
61.1%
|
| 3 | (dk) | 13 |
3.2%
|
| 4 | (ref) | 1 |
0.2%
|
| Sysmiss | 599 |