Region
China --
23
Japan --
11
China
10
United States --
10
Korea (South) --
9
Asia --
8
Malaysia --
7
Asia
6
Europe, Eastern --
6
Soviet Union --
6
United States
6
India --
5
Russia (Federation) --
5
Africa --
4
Former Soviet republics --
4
Korea (South)
4
Europe, Eastern
3
Japan
3
Malaysia
3
Vietnam --
3
Africa
2
Asia, Southeastern --
2
Communist countries --
2
Developing countries --
2
East Asia
2
East Asia --
2
Europe --
2
India
2
Latin America --
2
Soviet Union
2
Vietnam
2
Africa, Sub-Saharan --
1
Arab countries --
1
Armenia (Republic) --
1
Bulgaria
1
Bulgaria --
1
Burma --
1
Chile --
1
East Asia - --
1
Ecuador --
1
Estonia
1
European Economic Community countries
1
European Economic Community countries --
1
European, Eastern --
1
Germany --
1
Greece --
1
Guyana --
1
Islamic countries
1
Islamic countries --
1
Korea (North)
1
more ...