| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 0 |
0%
|
| 0 | No | 8 |
17.8%
|
| 1 | Yes | 37 |
82.2%
|
| Sysmiss | 4905 |