| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 9 |
29%
|
| -9 | Missing | 1 |
3.2%
|
| 0 | incorrect | 0 |
0%
|
| 1 | correct | 21 |
67.7%
|
| Sysmiss | 2956 |