| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 483 |
75%
|
| 2 | no | 156 |
24.2%
|
| 3 | (dk) | 4 |
0.6%
|
| 4 | (ref) | 1 |
0.2%
|
| Sysmiss | 361 |