| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 42 |
15.1%
|
| 2 | no | 232 |
83.5%
|
| 3 | (dk) | 3 |
1.1%
|
| 4 | (ref) | 1 |
0.4%
|
| Sysmiss | 722 |