Region
United States --
125
United States
64
United states --
19
Developing countries --
7
Developing countries
6
Soviet Union --
6
China --
5
Great Britain --
4
Soviet Union
4
China
3
Great Britain
3
Middle East
3
Middle East --
3
Turkey
3
Turkey --
3
United State --
3
Afghanistan
2
Afghanistan --
2
Caribbean Area --
2
Europe
2
Europe --
2
Europe, Eastern
2
Europe, Eastern --
2
Foreign countries
2
Japan
2
Japan --
2
Korea (South)
2
South Asia
2
South Asia --
2
Africa
1
Africa --
1
Africa, Southern --
1
Asia
1
Asia --
1
Cambodia --
1
Caribbean Area
1
Central America
1
Central America --
1
Eastern Europe
1
Egypt
1
Egypt --
1
Foreign relations --
1
Germany
1
Germany (West)
1
Germany (West) --
1
Germany --
1
Greece
1
Greece --
1
Guatemala
1
Guatemala --
1
more ...