| Value | Category | Cases | |
|---|---|---|---|
| 1 | Eher schwierig | 301 |
20%
|
| 2 | Eher leicht | 876 |
58.1%
|
| 3 | wn | 277 |
18.4%
|
| 9 | k.A. | 53 |
3.5%
|