| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 104 |
17.6%
|
| 2 | no | 473 |
80%
|
| 3 | (dk) | 8 |
1.4%
|
| 4 | (ref) | 6 |
1%
|
| Sysmiss | 423 |