| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 186 |
21.8%
|
| 2 | no | 629 |
73.7%
|
| 3 | (dk) | 36 |
4.2%
|
| 4 | (ref) | 2 |
0.2%
|
| Sysmiss | 147 |