| Value | Category | Cases | |
|---|---|---|---|
| 1 | difficult | 22 |
10.9%
|
| 2 | easy | 82 |
40.6%
|
| 3 | neutral | 24 |
11.9%
|
| 4 | verydifficult | 7 |
3.5%
|
| 5 | veryeasy | 67 |
33.2%
|