Region
United States
183
Developing countries
104
China
91
India
65
Africa
50
Asia
29
Africa, Sub-Saharan
22
Colorado
18
Afghanistan
15
Europe
13
Balkan Peninsula
11
Africa South of the Sahara
10
Latin America
10
Bangladesh
9
Europe, Eastern
8
Korea (South)
8
Haiti
7
Japan
7
Developed countries
6
Ghana
6
South Africa
6
BRIC countries
5
East Asia
5
Great Britain
5
Indonesia
5
Middle East
5
Russia (Federation)
5
Southeast Asia
5
Africa, North
4
Arctic regions
4
Brazil
4
Hawaii
4
Pacific Area
4
Tanzania
4
Wyoming
4
Africa, Southern
3
Africa, West
3
Caribbean Area
3
Europe, Central
3
Gulf States
3
Iowa
3
North Dakota
3
Northwest, Pacific
3
Thailand
3
Vietnam
3
Zimbabwe
3
Andes Region
2
Asia, Central
2
Australia
2
Burma
2
more ...