| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 81 |
15%
|
| 2 | no | 449 |
83.3%
|
| 3 | (dk) | 3 |
0.6%
|
| 4 | (ref) | 6 |
1.1%
|
| Sysmiss | 461 |