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Russia, as the largest country in the world, has great ethnic diversity, is a multinational state, and is home to over 190 ethnic groups nationwide. According to the population census at the end of 2021, more than 147.1 million people lived in Russia, which is 4.3 million more than in the 2010 census, or 3.03%. At the same time, only 130.587 million census participants indicated their nationality.... Wikipedia