Subject Region
United States
723
Mexico
68
China
58
Latin America
58
Great Britain
38
Brazil
37
European Union countries
35
Canada
32
India
30
Peru
28
Europe
27
Russia (Federation)
27
Japan
25
Spain
21
Argentina
18
Germany
18
Developing countries
16
Middle East
16
America Latina
15
Chile
15
Venezuela
15
Arab countries
13
Soviet Union
13
Athens
12
Bolivia
12
Greece
12
Korea (South)
12
Africa
11
Egypt
11
France
11
Italy
11
Athens (Greece)
10
California
10
Colombia
10
Australia
9
Ecuador
9
England
9
Espana
9
Hong Kong
9
Porto Alegre (Rio Grande do Sul, Brazil)
9
Ukraine
9
Hong Kong (China)
8
Ireland
8
Israel
8
Pennsylvania
8
Chicago
7
Cuba
7
Europe, Eastern
7
Illinois
7
Islamic countries
7
more ...