| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 729 |
83.6%
|
| 2 | no | 138 |
15.8%
|
| 3 | (dk) | 4 |
0.5%
|
| 4 | (ref) | 1 |
0.1%
|
| Sysmiss | 133 |