Region
United States --
47
United States
32
Japan --
6
European Economic Community countries --
5
China
4
China --
4
Japan
3
ASEAN countries
2
ASEAN countries --
2
Soviet Union
2
Soviet Union --
2
Asia, Southeastern --
1
Europe --
1
European Economic Community countries
1
Great Britain --
1
Hong Kong (China) --
1
India
1
India --
1
Korea (South) --
1
Latin America
1
Latin America --
1
Mexico
1
Mexico --
1
Taiwan --
1
United states --
1