| Value | Category | Cases | |
|---|---|---|---|
| 1 | Eher schwierig | 310 |
20.6%
|
| 2 | Eher leicht | 924 |
61.3%
|
| 3 | wn | 231 |
15.3%
|
| 9 | k.A. | 42 |
2.8%
|