Region
United States
1,509
Great Britain
43
Developing countries
40
China
39
California
37
Canada
27
Washington (D.C.)
27
Africa
23
India
19
Québec (Province)
18
Europe
16
Japan
16
Asia
15
England
13
Iraq
13
Northwest, Pacific
13
Québec
13
Germany
11
Australia
10
Latin America
10
North America
9
Africa, Sub-Saharan
8
Colombia
8
Texas
8
Washington Metropolitan Area
8
West (U.S.)
8
Africa, Southern
7
Colorado
7
Florida
7
Middle East
7
Nevada
7
Outer space
7
Afghanistan
6
Arizona
6
France
6
Georgia
6
Israel
6
London
6
Mexican-American Border Region
6
New Mexico
6
New York (State)
6
OECD countries
6
Virginia
6
Yellowstone National Park
6
Alaska
5
East Asia
5
Europe, Eastern
5
European Union countries
5
Mexico
5
Middle West
5
more ...