Region
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Minnesota
7
Ontario
7
Pacific Area
7
Russia (Federation)
7
Southern States
7
Brazil
6
France
6
Iowa
6
Maryland
6
New Hampshire
6
West Virginia
6
Africa, Sub-Saharan
5
Bangladesh
5
Boston
5
Connecticut
5
Great Lakes (North America)
5
New Jersey
5
North America
5
Northern boundary of the United States
5
Pakistan
5
Snake River (Wyo.-Wash.)
5
South Carolina
5
Taiwan
5
Ukraine
5
Washington Metropolitan Area
5
Africa, Southern
4
Arctic regions
4
Arkansas
4
Caribbean Area
4
Chicago
4
Denver
4
Foreign countries
4
Gulf Coast (U.S.)
4
Haiti
4
Hanford Site (Wash.)
4
Hawaii
4
Idaho
4
Middle East
4
Montana
4
New Mexico
4
Peru
4
Phoenix
4
Puerto Rico
4
Sweden
4
Western Hemisphere
4
Arlington
3
Baltimore
3
Chile
3
Columbia
3
Cuba
3
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