Region
United States --
31
United States
22
Asia
3
Asia --
2
Asia, Southeastern
2
Asia, Southeastern --
2
Developing countries
2
Developing countries --
2
East Asia --
2
Europe --
2
Canada --
1
Central America
1
Central America --
1
China
1
China --
1
Cuba
1
Cuba --
1
East Asia
1
European Economic Community countries --
1
Former Soviet Republics --
1
Former Soviet republics --
1
Haiti
1
Haiti --
1
Japan - --
1
Latin America
1
Latin America --
1
Malaysia
1
Malaysia --
1
Mexico
1
Mexico --
1
Middle West --
1
North Atlantic --
1
Pacific Area
1
Pacific Area --
1
Russia (Federation)
1
Russia (Federation) --
1
Southeast Asia --
1
United States - --
1