Photo source: Wikimedia Commons, TUBS (labels in German)
Photo license: CC-BY SA 3.0
- Central: 38 million
- Volga: 29 million
- Siberian: 17 million
- Southern: 16 million
- Northwestern: 13 million
- Ural: 12 million
- North Caucasian*: 9.4 million
- Far Eastern: 8.3 million
* North Caucasian is not labeled in the photo