| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 53 |
21.1%
|
| 2 | no | 188 |
74.9%
|
| 3 | (dk) | 9 |
3.6%
|
| 4 | (ref) | 1 |
0.4%
|
| Sysmiss | 749 |