| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 655 |
67.2%
|
| 2 | no | 303 |
31.1%
|
| 3 | (dk) | 3 |
0.3%
|
| 4 | (ref) | 13 |
1.3%
|
| Sysmiss | 45 |