Region
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Russia
4
West (U.S.)
4
West Bank
4
États-Unis
4
Africa, North
3
Armenia
3
Balkan Peninsula
3
Bosnia and Hercegovina
3
Chicago
3
Columbus (Miss.)
3
Crete (Greece)
3
Illinois
3
Korea
3
Lincoln Region (Neb.)
3
Lithuania
3
London (England)
3
Los Angeles
3
Maryland
3
Michigan
3
Nevada
3
New England
3
New Zealand
3
Newfoundland and Labrador
3
North Carolina
3
Oregon
3
Pacific Ocean
3
Philadelphia
3
Polar regions
3
Psychological aspects
3
Rome (Italy)
3
Saint Petersburg (Russia)
3
Singapore
3
South Carolina
3
Sri Lanka
3
Tanzania
3
Tokyo
3
USA
3
Virginia
3
Wales
3
Western countries
3
Wisconsin
3
Zimbabwe
3
Alberta
2
Athens
2
Belfast
2
Bengal
2
British Columbia
2
Buenos Aires
2
Burma
2
Chicago (Ill.)
2
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