| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 1 |
1.5%
|
| -888 | -888 | 0 |
0%
|
| 0 | No | 22 |
32.4%
|
| 1 | Yes | 45 |
66.2%
|
| Sysmiss | 4882 |