Region
United States
223
Developing countries
106
China
93
India
66
Africa
52
Asia
29
Africa, Sub-Saharan
22
Colorado
19
Afghanistan
16
Europe
14
Balkan Peninsula
11
Africa South of the Sahara
10
Latin America
10
Bangladesh
9
Europe, Eastern
9
Haiti
8
Korea (South)
8
Japan
7
Developed countries
6
Ghana
6
South Africa
6
BRIC countries
5
East Asia
5
Great Britain
5
Hawaii
5
Indonesia
5
Middle East
5
Russia (Federation)
5
Southeast Asia
5
Africa, North
4
Arctic regions
4
Brazil
4
Gulf States
4
Pacific Area
4
Tanzania
4
Vietnam
4
Wyoming
4
Africa, Southern
3
Africa, West
3
Caribbean Area
3
Europe, Central
3
Germany
3
Iowa
3
Korea (North)
3
North Dakota
3
Northwest, Pacific
3
Thailand
3
Western Hemisphere
3
Zimbabwe
3
Andes Region
2
more ...