Region
Africa, Sub-Saharan
11
Africa, Sub-Saharan --
11
Europe
3
Malaysia --
3
ASEAN --
2
China --
2
Malaysia
2
Soviet Union --
2
United States
2
Africa, North --
1
Asia
1
Asia --
1
Australasia
1
Australasia --
1
China
1
Europe --
1
Ghana
1
Ghana --
1
Great Britain
1
Great Britain --
1
Middle East --
1
Soviet Union
1
United States --
1