| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 242 |
32.8%
|
| 2 | no | 434 |
58.8%
|
| 3 | (dk) | 48 |
6.5%
|
| 4 | (ref) | 14 |
1.9%
|
| Sysmiss | 264 |