| Value | Category | Cases | |
|---|---|---|---|
| 1 | difficult | 55 |
13.5%
|
| 2 | easy | 208 |
51.2%
|
| 3 | neutral | 53 |
13.1%
|
| 4 | verydifficult | 14 |
3.4%
|
| 5 | veryeasy | 76 |
18.7%
|