USSR's population had grown up since WWII to the end. https://en.wikipedia.org/wiki/Demographics_of_the_Soviet_Union#Population_2 https://en.wikipedia.org/wiki/

USSR's population had grown up since WWII to the end. https://en.wikipedia.org/wiki/Demographics_of_the_Soviet_Union#Population_2 https://en.wikipedia.org/wiki/Demographics_of_the_Soviet_Uni...