| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 4617 |
70.4%
|
| 1 | Yes | 1478 |
22.5%
|
| 8 | Dk | 464 |
7.1%
|
| 9 | Missing | 7 | |
| Sysmiss | 1419 |