| Rzeki | % Poprawnych |
|---|---|
| Wisła | 99%
|
| Odra | 98%
|
| Warta | 89%
|
| Bug | 87%
|
| San | 71%
|
| Narew | 68%
|
| Noteć | 60%
|
| Wieprz | 59%
|
| Dunajec | 54%
|
| Nysa Łużycka | 47%
|
| Bóbr | 43%
|
| Wkra | 25%
|
| Łyna | 19%
|
| Plica | 4%
|
| Bdra | 2%
|