| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 848 |
95.8%
|
| 2 | no | 35 |
4%
|
| 3 | (dk) | 0 |
0%
|
| 4 | (ref) | 2 |
0.2%
|
| Sysmiss | 122 |