| Country | Year | |||||
|---|---|---|---|---|---|---|
| Belarus | 2021 | 4,350,187 | 5,011,455 | 9,361,642 | ||
| Bulgaria | 2021 | 3,342,855 | 3,520,918 | 6,863,773 | ||
| Czechia | 2021 | 5,224,552 | 5,387,999 | 10,612,551 | ||
| Hungary | 2021 | 4,603,637 | 5,054,451 | 9,658,088 | ||
| Slovakia | 2021 | 2,612,582 | 2,774,365 | 5,386,947 | ||
| Moldova | 2021 | 1,610,399 | 1,682,308 | 3,292,707 | ||
| Poland | 2021 | 18,305,556 | 19,556,407 | 37,861,963 | ||
| Romania | 2021 | 10,227,264 | 10,816,989 | 21,044,253 | ||
| Russia | 2021 | 64,714,889 | 75,360,612 | 140,075,501 | ||
| Ukraine | 2021 | 20,077,515 | 23,279,887 | 43,357,402 |