Region
Europe, Eastern
Europe, Eastern --
8
Soviet Union
3
Soviet Union --
3
Former Soviet republics --
2
Asia
1
Asia --
1
China
1
China --
1
Communist countries --
1
Developing countries
1
Developing countries --
1
Europe
1
Europe --
1
European Union countries
1
European Union countries --
1
Former Soviet republics
1
Latin America
1
Latin America --
1