| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 491 |
60%
|
| 2 | no | 314 |
38.3%
|
| 3 | (dk) | 4 |
0.5%
|
| 4 | (ref) | 10 |
1.2%
|
| Sysmiss | 181 |