| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 21 |
1.4%
|
| 0 | No | 1315 |
86.6%
|
| 1 | Yes | 183 |
12%
|
| Sysmiss | 3431 |