| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 663 |
91.3%
|
| 2 | no | 53 |
7.3%
|
| 3 | (dk) | 9 |
1.2%
|
| 4 | (ref) | 1 |
0.1%
|
| Sysmiss | 284 |