| Value | Category | Cases | |
|---|---|---|---|
| 1 | Eher schwierig | 441 |
29.1%
|
| 2 | Eher leicht | 929 |
61.4%
|
| 3 | wn | 129 |
8.5%
|
| 9 | k.A. | 14 |
0.9%
|