| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 13 |
25%
|
| 2 | no | 37 |
71.2%
|
| 3 | (dk) | 1 |
1.9%
|
| 4 | (ref) | 1 |
1.9%
|
| Sysmiss | 948 |