Region
United States --
United States
279
Japan --
27
Soviet Union --
26
Japan
22
Soviet Union
22
China --
15
United states --
12
China
11
Europe --
11
Latin America
9
Asia
8
Asia --
8
Developing countries
8
Latin America --
8
Europe
7
Central America --
6
Israel --
6
Korea (South)
6
Korea (South) --
6
Central America
5
European Economic Community countries --
5
Great Britain --
5
Middle East
5
East Asia --
4
Great Britain
4
Mexico
4
Mexico --
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
East Asia
3
European Economic Community countries
3
Foreign countries
3
Germany
3
Germany --
3
Israel
3
Middle East --
3
New Zealand
3
New Zealand --
3
Pacific Area --
3
Palestine
3
more ...