| Value | Category | Cases | |
|---|---|---|---|
| Difficult | 13 |
5.8%
|
|
| Easy | 24 |
10.7%
|
|
| Neither easy nor difficult | 81 |
36%
|
|
| Rather difficult | 58 |
25.8%
|
|
| Rather easy | 49 |
21.8%
|