| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 1 |
1.5%
|
| -777 | Not Applicable | 5 |
7.6%
|
| 0 | No | 22 |
33.3%
|
| 1 | Yes | 38 |
57.6%
|
| Sysmiss | 846 |