| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 9 |
13.4%
|
| -9 | Missing | 1 |
1.5%
|
| 0 | incorrect | 2 |
3%
|
| 1 | correct | 55 |
82.1%
|
| Sysmiss | 2920 |