Region
United States --
United States
295
Japan --
28
Soviet Union --
26
Japan
23
Soviet Union
22
China --
17
China
12
Europe --
12
United states --
12
Latin America
9
Asia
8
Asia --
8
Developing countries
8
Europe
8
Latin America --
8
Israel --
7
Central America --
6
East Asia --
6
Korea (South)
6
Korea (South) --
6
Middle East
6
Central America
5
East Asia
5
European Economic Community countries --
5
Great Britain --
5
Great Britain
4
Israel
4
Korea
4
Korea --
4
Mexico
4
Mexico --
4
Middle East --
4
Russia (Federation)
4
Russia (Federation) --
4
Russia --
4
United Nations
4
Australia --
3
Canada
3
Canada --
3
Caribbean Area --
3
Cuba
3
Cuba --
3
Developing countries --
3
European Economic Community countries
3
Foreign countries
3
Germany
3
Germany --
3
Iran
3
Iran --
3
more ...