| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 0 |
0%
|
| 0 | No | 2 |
22.2%
|
| 1 | Yes | 7 |
77.8%
|
| Sysmiss | 4941 |