| Value | Category | Cases | |
|---|---|---|---|
| 1 | difficult | 7 |
6.5%
|
| 2 | easy | 47 |
43.5%
|
| 3 | neutral | 9 |
8.3%
|
| 4 | verydifficult | 2 |
1.9%
|
| 5 | veryeasy | 43 |
39.8%
|