| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 264 |
28.4%
|
| 2 | no | 595 |
63.9%
|
| 3 | (dk) | 71 |
7.6%
|
| 4 | (ref) | 1 |
0.1%
|
| Sysmiss | 69 |