| Value | Category | Cases | |
|---|---|---|---|
| 1 | difficult | 41 |
10.1%
|
| 2 | easy | 184 |
45.3%
|
| 3 | neutral | 43 |
10.6%
|
| 4 | verydifficult | 18 |
4.4%
|
| 5 | veryeasy | 120 |
29.6%
|