Region
United States
44
United States --
35
Great Britain
22
Developing countries --
21
Developing countries
20
Great Britain --
10
Soviet Union --
10
China --
9
Soviet Union
9
Europe --
8
Asia, Southeastern --
6
China
6
Australia --
4
United Nations --
4
Africa --
3
Asia --
3
Europe, Eastern
3
France --
3
Indonesia --
3
Middle East
3
Middle East --
3
Africa
2
Asia
2
Australia
2
Commonwealth countries
2
East Asia --
2
Europe
2
Europe, Eastern --
2
Germany (West) --
2
Japan
2
Japan --
2
United State --
2
Yugoslavia
2
Yugoslavia --
2
Africa, Sub-Saharan --
1
Arab countries
1
Asia, Southeastern
1
Australasia --
1
Australian
1
Burma
1
Burma --
1
Cambodia --
1
Canada
1
Canada --
1
Caribbean Area
1
Caribbean Area --
1
Central America
1
Central America --
1
Commonwealth countries --
1
Commonwealth of Nations --
1
more ...