"Though there are no official figures from Russia on how many citizens left, research by Prague Process, an organization focused on migration research and process, estimated that 700,000 to 1.2 million Russians left in the first year of the conflict.
In a recent report on the impact of this exodus on Russia’s workforce, Russian researcher and economist Vladislav Inozemtsev arrived at a similar figure, saying at least 1.3 million Russians have left."