| Value | Category | Cases | |
|---|---|---|---|
| 1 | difficult | 29 |
23.6%
|
| 2 | easy | 59 |
48%
|
| 3 | neutral | 20 |
16.3%
|
| 4 | verydifficult | 4 |
3.3%
|
| 5 | veryeasy | 11 |
8.9%
|
| Missing value | 24 |