Region
United States
1,722
Developing countries
60
Great Britain
59
China
46
California
39
Canada
35
Africa
30
Washington (D.C.)
28
Europe
27
Japan
26
India
25
Asia
21
Québec (Province)
19
Northwest, Pacific
16
England
15
Iraq
15
Latin America
14
Québec
14
Australia
13
Germany
12
North America
11
West (U.S.)
11
États-Unis
10
France
10
New York (State)
10
Colombia
9
Europe, Eastern
9
Israel
9
Mexico
9
Spain
9
Africa, Sub-Saharan
8
Colorado
8
Florida
8
Indonesia
8
Massachusetts
8
Middle East
8
Nevada
8
New York
8
OECD countries
8
Texas
8
Tropics
8
Washington Metropolitan Area
8
Africa, Southern
7
European Union countries
7
London
7
Outer space
7
Afghanistan
6
Alaska
6
Arizona
6
Brazil
6
more ...