Region
Baltic states
1
Central Asia
1
Central Europe
1
China
2
China --
2
Communist countries --
1
Developing countries
1
Developing countries --
1
Europe
2
Europe --
2
Europe, Central
4
Europe, Eastern
Europe, Eastern --
1
Europe, Eastern --
32
Europe, Western --
1
European Union Countries
2
European Union Countries --
1
European Union countries
1
Former Soviet Republics
2
Former Soviet republics
8
Former Soviet republics --
7
Latin America
1
Latin America --
1
Middle East
1
Middle East --
1
Poland
1
Poland --
1
Russia (Federation)
2
Russia (Federation) --
2
Soviet Union
6
Soviet Union --
5
United States
3
United States --
3