| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 30 |
4.4%
|
| 2 | No | 598 |
87.7%
|
| 8 | DK | 19 |
2.8%
|
| 9 | Missing | 35 |
5.1%
|
| Sysmiss | 503 |