| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 15 |
25.4%
|
| 2 | no | 42 |
71.2%
|
| 3 | (dk) | 1 |
1.7%
|
| 4 | (ref) | 1 |
1.7%
|
| Sysmiss | 443 |