Subject Region
United States
233
Developing countries
30
European Union countries
25
Latin America
23
India
21
Japan
21
Great Britain
19
Mexico
19
China
18
Europe
18
Caribbean Area
13
Canada
11
Africa, Sub-Saharan
9
Europe, Eastern
9
Espana
8
Spain
8
Colombia
6
European Economic Community countries
6
Indonesia
6
Middle East
6
Romania
6
Africa
5
Cyprus
5
Ecuador
5
England
5
Italy
5
Kosovo (Republic)
5
Nigeria
5
Peru
5
Russia (Federation)
5
South Africa
5
Turkey
5
Asia
4
Austria
4
Developed countries
4
East Asia
4
Europe, Central
4
Former Soviet republics
4
France
4
Saint Kitts and Nevis
4
Ukraine
4
Africa, North
3
Albania
3
Asia, Central
3
Australia
3
Burkina Faso
3
Cambodia
3
Germany (West)
3
Ghana
3
Greece
3
more ...