Region
Africa
Africa --
26
Asia
7
China
5
China --
3
Developing countries --
2
Europe --
2
United States
2
United States --
2
Africa, Southern
1
Chad
1
Developing countries
1
Europe
1
France
1
France --
1
Indian Ocean Region
1
Kenya
1
Libya
1
Malaysia
1
Malaysia --
1
South Africa
1
South America
1
South America --
1
Southeast Asia
1
Southeast Asia --
1
Southern
1
Soviet Union
1
Soviet Union --
1
United Nations --
1
Venezuela
1