| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 56 |
13.1%
|
| 2 | no | 367 |
85.9%
|
| 3 | (dk) | 4 |
0.9%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 573 |