Region
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South Africa
3
South Carolina
3
Spain
3
Vietnam
3
Africa, Southern
2
Africa, Sub-Saharan
2
Alabama
2
Appalachian Region
2
Bangladesh
2
Cambodia
2
Cameroon
2
Detroit
2
East Asia
2
Egypt
2
Germany (East)
2
Greece
2
Hungary
2
Islamic Empire
2
Islamic countries
2
Italy
2
Kentucky
2
Korea (North)
2
London (England)
2
Los Angeles
2
Melbourne (Vic.)
2
Missouri
2
Nigeria
2
Pacific Area
2
Pakistan
2
Palestine
2
Paris
2
Paris (France)
2
Scandinavia
2
South China Sea
2
Sri Lanka
2
Thailand
2
Virginia
2
West (U.S.)
2
West Indies
2
Zambia
2
Zimbabwe
2
Afghanistan
1
Africa, Eastern
1
Africa, West
1
Alberta
1
Algeria
1
America
1
Andhra Pradesh
1
Arab countries
1
Aral Sea Watershed (Uzbekistan and Kazakhstan)
1
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