| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 480 |
73.4%
|
| 2 | no | 170 |
26%
|
| 3 | (dk) | 3 |
0.5%
|
| 4 | (ref) | 1 |
0.2%
|
| Sysmiss | 346 |