| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 37 |
3.8%
|
| 2 | No | 870 |
89.6%
|
| 8 | DK | 63 |
6.5%
|
| 9 | Missing | 1 |
0.1%
|
| Sysmiss | 4030 |