| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 490 |
81.4%
|
| 2 | no | 102 |
16.9%
|
| 3 | (dk) | 10 |
1.7%
|
| 4 | (ref) | 0 |
0%
|
| Sysmiss | 398 |