| Value | Category | Cases | |
|---|---|---|---|
| Difficult | 32 |
14.2%
|
|
| Easy | 14 |
6.2%
|
|
| Neither easy nor difficult | 77 |
34.2%
|
|
| Rather difficult | 67 |
29.8%
|
|
| Rather easy | 35 |
15.6%
|