Region
United States
217
Great Britain
39
India
36
Tropics
25
England
22
Nigeria
21
Australia
16
Japan
16
China
14
Canada
13
États-Unis
11
Southern States
10
Brazil
9
Middle West
8
Africa
7
California
7
Northeastern States
7
Australie
6
Colombia
6
France
6
Nepal
6
New York (State)
6
Pennsylvania
6
Russia (Federation)
6
West (U.S.)
6
États-Unis
6
Developing countries
5
East (U.S.)
5
Europe
5
Germany
5
Philippines
5
Spain
5
Sri Lanka
5
Thailand
5
United States, West
5
Yemen (Republic)
5
Alaska
4
Argentina
4
Bolivia
4
Central America
4
Ecuador
4
Indonesia
4
London
4
Mexico
4
Namibia
4
New Zealand
4
North America
4
Soviet Union
4
Africa, Southern
3
Guatemala
3
more ...