| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 263 |
86.2%
|
| 2 | no | 31 |
10.2%
|
| 3 | (dk) | 10 |
3.3%
|
| 4 | (ref) | 1 |
0.3%
|
| Sysmiss | 696 |