| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 526 |
81.3%
|
| 2 | no | 106 |
16.4%
|
| 3 | (dk) | 1 |
0.2%
|
| 4 | (ref) | 14 |
2.2%
|
| Sysmiss | 361 |