| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 249 |
30.4%
|
| 2 | no | 534 |
65.3%
|
| 3 | (dk) | 32 |
3.9%
|
| 4 | (ref) | 3 |
0.4%
|
| Sysmiss | 182 |