| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 68 |
21.6%
|
| 2 | no | 245 |
77.8%
|
| 3 | (dk) | 1 |
0.3%
|
| 4 | (ref) | 1 |
0.3%
|
| Sysmiss | 685 |