| Value | Category | Cases | |
|---|---|---|---|
| 0.0 | Incorrect | 2960 |
60.5%
|
| 1.0 | Correct | 986 |
20.1%
|
| i | Invalid | 3 |
0.1%
|
| u | Unanswered | 947 |
19.3%
|
| Sysmiss | 3 |