| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 112 |
12.4%
|
| 2 | no | 749 |
83.2%
|
| 3 | (dk) | 1 |
0.1%
|
| 4 | (ref) | 38 |
4.2%
|
| Sysmiss | 105 |