| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 122 |
32.9%
|
| 2 | no | 244 |
65.8%
|
| 3 | (dk) | 4 |
1.1%
|
| 4 | (ref) | 1 |
0.3%
|
| Sysmiss | 631 |