| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 359 |
70.8%
|
| 2 | no | 131 |
25.8%
|
| 3 | (dk) | 10 |
2%
|
| 4 | (ref) | 7 |
1.4%
|
| Sysmiss | 493 |