Region
Europe
United States
19
European Union countries
9
Great Britain
6
Soviet Union
3
Australia
2
Europe, Western
2
European Economic Community countries
2
Germany
2
Africa
1
America
1
Canada
1
China
1
England
1
Europe, Eastern
1
Europe,Western
1
European Economic Community Countries
1
India
1
Islamic countries
1
Japan
1
New York
1
New York (State)
1
North America
1
Pacific Area
1
Spain
1
Turkey
1