| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 802 |
80.7%
|
| 2 | no | 185 |
18.6%
|
| 3 | (dk) | 4 |
0.4%
|
| 4 | (ref) | 3 |
0.3%
|
| Sysmiss | 6 |