| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 134 |
27.9%
|
| 2 | no | 337 |
70.1%
|
| 3 | (dk) | 9 |
1.9%
|
| 4 | (ref) | 1 |
0.2%
|
| Sysmiss | 519 |