Region
United States --
United States
19
Europe --
3
Japan
3
Japan --
3
ASEAN countries
2
ASEAN countries --
2
Canada
2
Canada --
2
China
2
Europe
2
European Economic Community countries
2
European Economic Community countries --
2
Central America
1
Central America --
1
China --
1
Cuba
1
Cuba --
1
East Asia --
1
Finland
1
Finland --
1
Pacific Area --
1
Soviet Union
1
Soviet Union --
1
Thailand
1
Thailand --
1