Region
Venezuela
571
United States
487
Mexico
423
México
381
Spain
349
Cuba
333
Latin America
247
Colombia
246
Chile
199
España
177
Investigación
158
États-Unis
130
Argentina
118
Canada
116
América Latina
104
Europe
93
Brazil
90
Great Britain
70
China
65
Australia
58
Perú
58
Africa
47
Asia
42
India
41
Poland
41
Romania
40
Turkey
40
Developing countries
35
Europe, Eastern
30
Eastern Europe
29
Middle East
27
Pakistan
25
Ecuador
24
France
24
Germany
24
South Africa
23
Italy
22
Uruguay
22
Peru
21
Russia (Federation)
21
California
18
Greece
17
Portugal
17
Japan
16
Croatia
15
East Asia
15
European Union countries
15
Nigeria
15
America
14
América latina
14
more ...