| Country | Year | |||||
|---|---|---|---|---|---|---|
| Belarus | 2026 | 4,280,522 | 4,931,475 | 9,211,997 | ||
| Bulgaria | 2026 | 3,224,575 | 3,402,013 | 6,626,588 | ||
| Czechia | 2026 | 5,225,169 | 5,375,747 | 10,600,916 | ||
| Hungary | 2026 | 4,531,721 | 4,967,484 | 9,499,205 | ||
| Slovakia | 2026 | 2,592,750 | 2,756,388 | 5,349,138 | ||
| Moldova | 2026 | 1,527,204 | 1,582,142 | 3,109,346 | ||
| Poland | 2026 | 18,019,252 | 19,298,211 | 37,317,463 | ||
| Romania | 2026 | 10,011,215 | 10,603,798 | 20,615,013 | ||
| Russia | 2026 | 63,977,205 | 74,562,435 | 138,539,640 | ||
| Ukraine | 2026 | 19,612,839 | 22,677,027 | 42,289,866 |