| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 9 |
12.9%
|
| -9 | Missing | 1 |
1.4%
|
| 0 | incorrect | 1 |
1.4%
|
| 1 | correct | 59 |
84.3%
|
| Sysmiss | 2917 |