Region
Africa --
46
South Africa --
40
South Africa
39
Africa
28
Africa, North --
6
Middle East --
6
United States --
6
Africa, Southern --
5
Africa, North
4
Africa, Sub-Saharan
4
Africa, Sub-Saharan --
4
United States
4
Africa, South --
3
Africa, Southern
3
Namibia --
3
Nigeria
3
Nigeria --
3
Africa, Central --
2
Africa, Eastern
2
Africa, Northeast --
2
Botswana --
2
Europe --
2
France --
2
Great Britain --
2
Middle East
2
Namibia
2
Zimbabwe
2
Zimbabwe --
2
1960-
1
2001-
1
Africa, Northeast
1
Africa, Sub-Sahara --
1
Africa, West
1
Africa, West --
1
Africa- --
1
Algeria
1
Algeria --
1
Asia
1
Asia --
1
Australia
1
Australia --
1
Botswana
1
Burkina Faso
1
Burkina Faso --
1
Cape of Good Hope (South Africa) --
1
Chad --
1
Developing countries
1
Developing countries --
1
Ethiopia
1
Europe
1
more ...