| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 91 |
68.4%
|
| 2 | no | 38 |
28.6%
|
| 3 | (dk) | 1 |
0.8%
|
| 4 | (ref) | 3 |
2.3%
|
| Sysmiss | 867 |