| Value | Category | Cases | |
|---|---|---|---|
| 1 | difficult | 73 |
25.5%
|
| 2 | easy | 82 |
28.7%
|
| 3 | neutral | 49 |
17.1%
|
| 4 | verydifficult | 60 |
21%
|
| 5 | veryeasy | 22 |
7.7%
|
| Missing value | 860 |