Subject Region
United States
389
Developing countries
259
Latin America
73
Mexico
68
Africa
54
Great Britain
53
China
41
India
40
America Latina
32
Argentina
28
England
26
Asia
24
Africa, Sub-Saharan
23
Europe
22
Peru
21
South Africa
21
Canada
19
Bangladesh
16
New York (State)
15
Chile
14
Europe, Eastern
12
Brazil
11
Appalachian Region
10
Caribbean Area
10
Egypt
10
New York
10
South Asia
10
Tanzania
9
Australia
8
Ecuador
8
Ireland
8
Pennsylvania
8
Colombia
7
Europe, Central
7
France
7
Middle East
7
Spain
7
Germany
6
Hong Kong
6
Netherlands
6
New York (N.Y.)
6
Nicaragua
6
Philippines
6
Espana
5
Former Soviet republics
5
Ghana
5
Guatemala
5
Hong Kong (China)
5
Kenya
5
Malawi
5
more ...