Region
United States --
United States
21
Africa
6
Africa --
6
South Africa
6
South Africa --
6
Africa, Northeast
2
Africa, Northeast --
2
Africa, Southern --
2
Nigeria
2
Nigeria --
2
Soviet Union --
2
United states --
2
1960-
1
2001-
1
Africa, North
1
Africa, North --
1
Africa, Southern
1
Arab
1
Arab countries --
1
Brazil
1
Brazil --
1
Caribbean Area --
1
Ethiopia
1
Ethiopia --
1
Horn of Africa
1
Horn of Africa --
1
Israel
1
Israel --
1
Middle East
1
Middle East --
1
North Africa
1
North Africa --
1
Somalia
1
Somalia --
1
Soviet Union
1
United Arab Republic
1
United Arab Republic --
1