Region
United States
28
United States --
27
Japan --
20
Japan
17
China --
11
China
9
Pacific Area --
9
Asia
8
Asia --
8
Europe --
7
ASEAN countries
6
ASEAN countries --
5
Asia, Southeastern --
5
South Africa
5
Soviet Union
5
Soviet Union --
5
Asia, Southeastern
4
East Asia --
4
Europe
4
European Economic Community countries
4
European Economic Community countries --
4
European Union countries
4
European Union countries --
4
Korea (South) --
4
Pacific Area
4
South Africa --
4
Southeast Asia
4
Africa
3
Canada
3
Canada --
3
Developing countries
3
Developing countries --
3
Korea (South)
3
Taiwan --
3
ASEAN
2
Africa --
2
Africa, Southern
2
Africa, Southern --
2
Australia
2
Australia --
2
Europe, Eastern
2
Europe, Eastern --
2
Great Britain --
2
Malaysia
2
Pacific area --
2
South Asia
2
South Asia --
2
Southeast Asia --
2
Taiwan
2
ASEAN --
1
more ...