| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very easy | 19 |
14.2%
|
| 2 | Fairly easy | 61 |
45.5%
|
| 3 | Fairly difficult | 47 |
35.1%
|
| 4 | Very difficult | 7 |
5.2%
|
| Sysmiss | 46800 |