| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 103 |
29.5%
|
| 2 | no | 216 |
61.9%
|
| 3 | (dk) | 27 |
7.7%
|
| 4 | (ref) | 3 |
0.9%
|
| Sysmiss | 651 |