| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 920 |
95.5%
|
| 2 | no | 35 |
3.6%
|
| 3 | (dk) | 2 |
0.2%
|
| 4 | (ref) | 6 |
0.6%
|
| Sysmiss | 37 |