| Value | Category | Cases | |
|---|---|---|---|
| Difficult | 15 |
6.7%
|
|
| Easy | 42 |
18.7%
|
|
| Neither easy nor difficult | 72 |
32%
|
|
| Rather difficult | 31 |
13.8%
|
|
| Rather easy | 65 |
28.9%
|