Region
United States
478
Great Britain
127
Colorado
45
Australia
12
China
9
California
7
Canada
6
India
5
Kansas
5
England
4
Europe
3
Finland
3
Japan
3
New York
3
New York (State)
3
Utah
3
Asia
2
East Asia
2
Haiti
2
Illinois
2
Korea (South)
2
Latin America
2
Michigan
2
Minnesota
2
New Hampshire
2
New Zealand
2
Ohio
2
Pacific Area
2
Singapore
2
South Africa
2
Texas
2
Vermont
2
Africa
1
Africa, Sub-Saharan
1
Asia, Central
1
Bolivia
1
Cambridge
1
Caribbean Area
1
Chile
1
China, Southwest
1
Developing countries
1
Ethiopia
1
Europe, Central
1
Europe, Eastern
1
France
1
Georgia
1
Greeley
1
Hawaii
1
Hong Kong
1
Indiana
1
more ...