| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 62 |
17.8%
|
| 2 | no | 278 |
79.7%
|
| 3 | (dk) | 5 |
1.4%
|
| 4 | (ref) | 4 |
1.1%
|
| Sysmiss | 651 |