| Value | Category | Cases | |
|---|---|---|---|
| 1 | difficult | 119 |
32.8%
|
| 2 | easy | 113 |
31.1%
|
| 3 | neutral | 44 |
12.1%
|
| 4 | verydifficult | 52 |
14.3%
|
| 5 | veryeasy | 35 |
9.6%
|
| Missing value | 73 |