| Moedertaalsprekers | Taal | % Correct |
|---|---|---|
| 155 mil | Russisch | 95%
|
| 19 mil | Servo-Kroatisch | 82%
|
| 40 mil | Pools | 74%
|
| 9 mil | Bulgaars | 73%
|
| 2.1 mil | Sloveens | 67%
|
| 5.5 mil | Slowaaks | 60%
|
| 30 mil | Oekraïens | 55%
|
| 10 mil | Tsjechisch | 54%
|
| 7.6 mil | Wit-Russisch | 51%
|
| 2 mil | Macedonisch | 40%
|