| Value | Category | Cases | |
|---|---|---|---|
| 0.0 | Incorrect | 616 |
12.6%
|
| 1.0 | Correct | 4168 |
85.1%
|
| i | Invalid | 26 |
0.5%
|
| u | Unanswered | 86 |
1.8%
|
| Sysmiss | 3 |