| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 6 |
3.3%
|
| 0 | No | 10 |
5.5%
|
| 1 | Yes | 165 |
91.2%
|
| Sysmiss | 4769 |