| Antwort | % Korrekt |
|---|---|
| Rhein | 90%
|
| Ruhr | 89%
|
| Wupper | 85%
|
| Düssel | 76%
|
| Lippe | 75%
|
| Weser | 73%
|
| Sieg | 72%
|
| Ems | 70%
|
| Maas | 69%
|
| Erft | 57%
|
| Emscher | 52%
|
| Rur | 48%
|
| Issel | 46%
|
| Möhne | 37%
|
| Lenne | 36%
|
| Niers | 36%
|
| Diemel | 32%
|
| Bigge | 30%
|
| Vechte | 25%
|
| Emmer | 15%
|