| Value | Category | Cases | |
|---|---|---|---|
| -99 | No response | 72 |
2.1%
|
| -88 | Doesn | 5 |
0.1%
|
| 0 | Incorrect | 2386 |
70%
|
| 1 | Correct | 944 |
27.7%
|
| Sysmiss | 460 |