| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 5179 |
20.6%
|
| 2 | No | 19960 |
79.2%
|
| 8 | Dk | 50 |
0.2%
|
| 9 | Missing | 10 |
0%
|
| Sysmiss | 818 |