Region
United States
44
United States --
35
China --
4
China
3
Soviet Union
3
Japan --
2
Soviet Union --
2
United State --
2
Asia
1
Asia --
1
Caribbean Area
1
Caribbean Area --
1
Central America
1
Central America --
1
Europe --
1
European Economic Community countries
1
European Economic Community countries --
1
France
1
France --
1
Great Britain
1
Great Britain --
1
Indian Ocean Region --
1
Japan
1
Latin America
1
Latin America --
1
North Atlantic --
1