| Country | Year | |||||
|---|---|---|---|---|---|---|
| Belarus | 2011 | 4,441,104 | 5,112,916 | 9,554,020 | ||
| Bulgaria | 2011 | 3,559,370 | 3,718,578 | 7,277,948 | ||
| Czechia | 2011 | 5,129,453 | 5,330,889 | 10,460,342 | ||
| Hungary | 2011 | 4,702,460 | 5,177,597 | 9,880,057 | ||
| Slovakia | 2011 | 2,605,106 | 2,767,866 | 5,372,972 | ||
| Moldova | 2011 | 1,766,008 | 1,881,973 | 3,647,981 | ||
| Poland | 2011 | 18,512,908 | 19,719,873 | 38,232,781 | ||
| Romania | 2011 | 10,559,806 | 11,137,039 | 21,696,845 | ||
| Russia | 2011 | 65,078,065 | 75,677,225 | 140,755,290 | ||
| Ukraine | 2011 | 20,793,623 | 24,313,898 | 45,107,521 |