| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 33 |
13.5%
|
| 2 | no | 208 |
85.2%
|
| 3 | (dk) | 2 |
0.8%
|
| 4 | (ref) | 1 |
0.4%
|
| Sysmiss | 756 |