| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 309 |
37.5%
|
| 2 | no | 507 |
61.5%
|
| 3 | (dk) | 5 |
0.6%
|
| 4 | (ref) | 3 |
0.4%
|
| Sysmiss | 188 |