| Speakers | Language | % Correct |
|---|---|---|
| 55 mil | Polish | 99%
|
| 144 mil | Russian | 99%
|
| 9 mil | Bulgarian | 96%
|
| 6,9 mil | Slovak | 96%
|
| 45 mil | Ukrainian | 96%
|
| 8 mil | Croatian | 95%
|
| 10 mil | Czech | 95%
|
| 12 mil | Serbian | 95%
|
| 9 mil | Belarusian | 89%
|
| 2,2 mil | Macedonian | 89%
|
| 2,5 mil | Slovenian | 88%
|
| 3 mil | Bosnian | 87%
|
| 232 k | Montenegrin | 68%
|