| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 278 |
69.7%
|
| 2 | no | 115 |
28.8%
|
| 3 | (dk) | 1 |
0.3%
|
| 4 | (ref) | 5 |
1.3%
|
| Sysmiss | 603 |