| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 9 |
0.5%
|
| -9 | Missing | 1 |
0.1%
|
| 0 | incorrect | 85 |
4.4%
|
| 1 | correct | 1857 |
95.1%
|
| Sysmiss | 1035 |