| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 260 |
28%
|
| 2 | no | 656 |
70.5%
|
| 3 | (dk) | 11 |
1.2%
|
| 4 | (ref) | 3 |
0.3%
|
| Sysmiss | 1081 |