| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 160 |
29%
|
| 2 | no | 365 |
66.1%
|
| 3 | (dk) | 24 |
4.3%
|
| 4 | (ref) | 3 |
0.5%
|
| Sysmiss | 449 |