| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 5 |
7%
|
| -9 | Missing | 2 |
2.8%
|
| 0 | incorrect | 2 |
2.8%
|
| 1 | correct | 62 |
87.3%
|
| Sysmiss | 2916 |