| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 853 |
91.1%
|
| 2 | no | 80 |
8.5%
|
| 3 | (dk) | 1 |
0.1%
|
| 4 | (ref) | 2 |
0.2%
|
| Sysmiss | 71 |