| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 503 |
94.5%
|
| 2 | no | 22 |
4.1%
|
| 3 | (dk) | 0 |
0%
|
| 4 | (ref) | 7 |
1.3%
|
| Sysmiss | 468 |