United States 9,305
Colorado 322
Washington (D.C.) 153
Great Britain 75
European Union countries 43
Canada 38
Iraq 33
China 32
New Zealand 25
Developing countries 24
Europe 21
Washington, D.C. 18
Australia 17
Germany 15
California 14
Alaska 13
Latin America 13
OECD countries 13
Puerto Rico 13
Afghanistan 12
Mexico 12
France 11
Maryland 11
Asia 10
Ohio 10
Virginia 10
Africa 9
Colombia 9
Cuba 9
India 9
Japan 9
Mexico, Gulf of 9
Russia (Federation) 9
Hawaii 8
New York (State) 8
Oklahoma 8
Africa, Sub-Saharan 7
Alabama 7
Soviet Union 7
Israel 6
Russia 6
Arizona 5
Caribbean Area 5
Delaware 5
Florida 5
Guam 5
Korea (South) 5
Massachusetts 5
Michigan 5
Minnesota 5
Mississippi River 5
New Hampshire 5
Pennsylvania 5
South Africa 5
Spain 5
Tennessee 5
Texas 5
Turkey 5
Utah 5
Washington Metropolitan Area 5
Austria 4
Canal Zone 4
European Economic Community countries 4
États-Unis 4
Gulf Coast (U.S.) 4
Indonesia 4
Kentucky 4
Nebraska 4
Oregon 4
Pakistan 4
Portugal 4
Sub-Saharan Africa 4
Thailand 4
United States Virgin Islands 4
Allemagne 3
Boston (Mass.) 3
Commonwealth countries 3
East Asia 3
Europe, Eastern 3
Illinois 3
Ireland 3
Maine 3
Montana 3
Nevada 3
New Mexico 3
New York 3
New York (N.Y.) 3
North Carolina 3
Ontario 3
Panama 3
Panama Canal (Panama) 3
Peru 3
Philippines 3
Québec (Province) 3
Southeast Asia 3
Taiwan 3
USA 3
West (U.S.) 3
Wisconsin 3
Wyoming 3