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151981 Studies found for: Change in

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Map Legend
Region Name Number of Studies
World [map] 151,981
North America 69,371
United States 62,015 [studies]
Alabama 5,099 [studies]
Alaska 350 [studies]
Arizona 6,253 [studies]
Arkansas 2,738 [studies]
California 18,074 [studies]
Colorado 6,426 [studies]
Connecticut 4,472 [studies]
Delaware 868 [studies]
District of Columbia 2,519 [studies]
Florida 12,725 [studies]
Georgia 7,638 [studies]
Hawaii 919 [studies]
Idaho 1,667 [studies]
Illinois 9,011 [studies]
Indiana 5,044 [studies]
Iowa 2,504 [studies]
Kansas 3,837 [studies]
Kentucky 4,038 [studies]
Louisiana 3,979 [studies]
Maine 957 [studies]
Maryland 8,631 [studies]
Massachusetts 9,842 [studies]
Michigan 7,284 [studies]
Minnesota 5,890 [studies]
Mississippi 1,687 [studies]
Missouri 7,108 [studies]
Montana 1,162 [studies]
Nebraska 2,982 [studies]
Nevada 2,756 [studies]
New Hampshire 1,238 [studies]
New Jersey 5,672 [studies]
New Mexico 1,813 [studies]
New York 13,789 [studies]
North Carolina 10,177 [studies]
North Dakota 890 [studies]
Ohio 10,324 [studies]
Oklahoma 3,631 [studies]
Oregon 4,645 [studies]
Pennsylvania 11,154 [studies]
Rhode Island 1,997 [studies]
South Carolina 5,182 [studies]
South Dakota 1,026 [studies]
Tennessee 6,786 [studies]
Texas 14,314 [studies]
Utah 4,072 [studies]
Vermont 988 [studies]
Virginia 6,049 [studies]
Washington 6,428 [studies]
West Virginia 1,039 [studies]
Wisconsin 3,902 [studies]
Wyoming 176 [studies]

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