Region
Europe, Eastern
Europe, Eastern --
37
Former Soviet republics --
9
Former Soviet republics
8
Soviet Union
7
Soviet Union --
7
Asia
2
Asia --
2
Europe
2
Europe --
2
Russia (Federation)
2
Russia (Federation) --
2
Asia, Central
1
Asia, Central --
1
Eastern Europe
1
Europe, Central
1
Europe, Central --
1
Europe, Western
1
Europe, Western --
1
Middle East
1
Middle East --
1
United States
1
United States --
1