| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 240 |
69.6%
|
| 2 | no | 101 |
29.3%
|
| 3 | (dk) | 3 |
0.9%
|
| 4 | (ref) | 1 |
0.3%
|
| Sysmiss | 669 |