| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 644 |
69.7%
|
| 2 | no | 245 |
26.5%
|
| 3 | (dk) | 1 |
0.1%
|
| 4 | (ref) | 34 |
3.7%
|
| Sysmiss | 81 |