| Value | Category | Cases | |
|---|---|---|---|
| Difficult | 48 |
21.3%
|
|
| Easy | 8 |
3.6%
|
|
| Neither easy nor difficult | 75 |
33.3%
|
|
| Rather difficult | 73 |
32.4%
|
|
| Rather easy | 21 |
9.3%
|