| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 39 |
2.6%
|
| 0 | No | 973 |
64.1%
|
| 1 | Yes | 507 |
33.4%
|
| Sysmiss | 3431 |