| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 114 |
29.2%
|
| 2 | no | 256 |
65.5%
|
| 3 | (dk) | 20 |
5.1%
|
| 4 | (ref) | 1 |
0.3%
|
| Sysmiss | 609 |