Region
ASEAN countries
2
ASEAN countries --
2
China
4
China --
4
Europe --
1
European Economic Community countries
1
European Economic Community countries --
4
Great Britain --
1
India
1
India --
1
Japan
2
Japan --
5
Latin America
1
Latin America --
1
Mexico
1
Mexico --
1
Soviet Union
2
Soviet Union --
2
United States
29
United States --
United states --
1