Region
United States
United States --
8
Japan
3
China
2
China --
2
Germany
2
Asia
1
Central America
1
Central America --
1
Developing countries
1
Developing countries --
1
East Asia
1
Europe
1
European Economic Community countries
1
Foreign countries
1
Germany --
1
India
1
Malaysia
1
Malaysia --
1
Middle West --
1
South Africa
1
South Africa --
1
Southeast Asia
1