| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 687 |
87.5%
|
| 2 | no | 70 |
8.9%
|
| 3 | (dk) | 17 |
2.2%
|
| 4 | (ref) | 11 |
1.4%
|
| Sysmiss | 215 |