| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 608 |
77.7%
|
| 2 | no | 162 |
20.7%
|
| 3 | (dk) | 6 |
0.8%
|
| 4 | (ref) | 6 |
0.8%
|
| Sysmiss | 218 |