| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 36 |
28.3%
|
| 2 | no | 88 |
69.3%
|
| 3 | (dk) | 2 |
1.6%
|
| 4 | (ref) | 1 |
0.8%
|
| Sysmiss | 873 |