Subject Region
Developing countries
666
China
289
Africa
215
United States
181
Latin America
165
India
140
Asia
89
Mexico
78
Europe
71
Africa, Sub-Saharan
52
America Latina
51
Japan
37
Caribbean Area
34
Colombia
32
Southeast Asia
29
Peru
28
Russia (Federation)
27
South Africa
27
East Asia
26
Indonesia
26
Middle East
25
Ecuador
24
Nigeria
24
European Union countries
23
Korea (South)
23
Pacific Area
23
Brazil
21
Canada
21
Great Britain
21
South Asia
21
Chile
20
Ghana
20
France
17
Spain
17
Africa, West
16
Bangladesh
16
Europe, Eastern
15
Africa, Southern
14
Africa, North
13
Australia
13
Netherlands
13
Asia, Central
12
Italy
12
Kenya
12
Tanzania
12
Vietnam
12
Espana
11
Southern States
11
Developed countries
10
Germany
10
more ...