| Value | Category | Cases | |
|---|---|---|---|
| 1 | Eher schwierig | 440 |
29.2%
|
| 2 | Eher leicht | 940 |
62.3%
|
| 3 | wn | 115 |
7.6%
|
| 9 | k.A. | 14 |
0.9%
|