Subject Region
United States
415
Latin America
113
Europe
73
India
68
Russia (Federation)
67
Mexico
64
China
53
South Africa
53
Athens (Greece)
52
Greece
50
Africa
43
Europe, Eastern
39
Athens
35
Japan
35
Great Britain
31
America Latina
29
Germany
29
Indonesia
28
Chile
26
Middle East
26
Israel
25
Arab countries
24
Soviet Union
23
European Union countries
22
Peru
22
Taiwan
22
Africa, Sub-Saharan
21
Argentina
21
France
21
Brazil
19
Korea (South)
19
Poland
19
Spain
19
Canada
16
Developing countries
16
East Asia
16
Pakistan
16
Asia
14
Iran
14
Europe, Central
13
Islamic countries
13
Australia
12
Egypt
12
Iraq
12
Turkey
12
Central America
11
Hungary
11
Thailand
11
Burma
10
Nicaragua
10
more ...