Region
Developing countries
24
United States --
19
Great Britain
18
United States
18
Developing countries --
14
Great Britain --
10
China --
7
Soviet Union --
6
Commonwealth countries --
5
South Africa
5
Soviet Union
5
Europe --
4
Malaysia --
4
Asia --
3
Europe
3
Japan --
3
Middle East
3
Middle East --
3
South Africa --
3
Africa
2
Africa --
2
Africa, Sub-Saharan
2
Asia
2
Asia, Southeastern --
2
Australia
2
Australia --
2
Canada
2
Caribbean Area --
2
China
2
East Asia
2
England
2
Europe, Eastern
2
European Economic Community countries
2
European Economic Community countries --
2
European Union countries
2
Germany (West) --
2
Indian Ocean Region --
2
Islamic countries
2
Islamic countries --
2
Israel
2
Israel --
2
Latin America
2
Latin America --
2
Malaysia
2
Norway
2
Sudan --
2
Wales
2
Yugoslavia
2
Yugoslavia --
2
Africa, Eastern
1
more ...