| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 720 |
89.9%
|
| 2 | no | 75 |
9.4%
|
| 3 | (dk) | 1 |
0.1%
|
| 4 | (ref) | 5 |
0.6%
|
| Sysmiss | 206 |