| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 89 |
24%
|
| 2 | no | 252 |
67.9%
|
| 3 | (dk) | 28 |
7.5%
|
| 4 | (ref) | 2 |
0.5%
|
| Sysmiss | 631 |