Region
China --
28
China
17
United States --
17
Europe, Eastern --
12
Japan --
12
Soviet Union --
11
United States
11
Korea (South) --
9
Asia --
8
Asia, Southeastern --
7
East Asia --
7
India --
7
Great Britain --
6
India
6
Russia (Federation) --
6
Asia
5
Europe, Eastern
5
Malaysia
5
Pacific Area --
5
Soviet Union
5
Taiwan --
5
Developing countries --
4
European Economic Community countries --
4
Former Soviet republics --
4
Korea (South)
4
Latin America --
4
Malaysia --
4
Africa --
3
Hungary --
3
Japan
3
Pacific Area
3
Africa
2
Asia, Southeastern
2
Chile --
2
East Asia
2
East Asia - --
2
Europe --
2
France --
2
Greece --
2
Hungary
2
Mexico --
2
Poland --
2
Vietnam --
2
1945-
1
ASEAN countries
1
ASEAN countries --
1
Africa, Sub-Saharan
1
Africa, Sub-Saharan --
1
Andhra Pradesh
1
Andhra Pradesh (India) --
1
more ...