| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 9 |
0.3%
|
| -9 | Missing | 1 |
0%
|
| 0 | incorrect | 1003 |
35.3%
|
| 1 | correct | 1827 |
64.3%
|
| Sysmiss | 147 |