| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very easy | 64 |
16.8%
|
| 2 | Fairly easy | 142 |
37.4%
|
| 3 | Fairly difficult | 150 |
39.5%
|
| 4 | Very difficult | 24 |
6.3%
|
| Sysmiss | 43860 |