| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 63 |
9.1%
|
| 2 | no | 594 |
86.1%
|
| 3 | (dk) | 33 |
4.8%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 310 |