| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 1 |
3.2%
|
| -777 | Not Applicable | 0 |
0%
|
| 0 | No | 11 |
35.5%
|
| 1 | Yes | 19 |
61.3%
|
| Sysmiss | 881 |