| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 320 |
36.5%
|
| 2 | no | 493 |
56.2%
|
| 3 | (dk) | 62 |
7.1%
|
| 4 | (ref) | 2 |
0.2%
|
| Sysmiss | 123 |