| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 332 |
40%
|
| 2 | no | 481 |
58%
|
| 3 | (dk) | 11 |
1.3%
|
| 4 | (ref) | 5 |
0.6%
|
| Sysmiss | 178 |