| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 268 |
58.1%
|
| 2 | no | 188 |
40.8%
|
| 3 | (dk) | 2 |
0.4%
|
| 4 | (ref) | 3 |
0.7%
|
| Sysmiss | 539 |