| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 300 |
39.2%
|
| 2 | no | 461 |
60.2%
|
| 3 | (dk) | 4 |
0.5%
|
| 4 | (ref) | 1 |
0.1%
|
| Sysmiss | 234 |