| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 0 |
0%
|
| -9 | Missing | 1 |
0.1%
|
| 0 | incorrect | 75 |
4%
|
| 1 | correct | 1818 |
96%
|
| Sysmiss | 1093 |