| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 70 |
16.4%
|
| 2 | no | 348 |
81.7%
|
| 3 | (dk) | 5 |
1.2%
|
| 4 | (ref) | 3 |
0.7%
|
| Sysmiss | 574 |