Region
Europe, Eastern
13
Europe, Eastern --
12
Russia (Federation)
9
Russia (Federation) --
8
Former Soviet republics
6
Former Soviet republics --
5
Asia, Central
2
Asia, Central --
2
Poland
2
Poland --
2
Soviet Union --
2
Azerbaijan
1
Azerbaijan --
1
Baltic States
1
Baltic States --
1
Bulgaria
1
Bulgaria --
1
China
1
China --
1
Estonia
1
Estonia --
1
Former Soviet Republics
1
Russia --
1
Slovenia
1
Slovenia --
1