Region
United States
37
Developing countries
28
Europe
21
America
18
Asia
7
Latin America
6
Canada
5
European Union countries
5
Brazil
4
China
4
European Economic Community countries
4
Argentina
3
East Asia
3
Japan
3
Korea (South)
3
Spain
3
BRIC countries
2
Caribbean Area
2
Colombia
2
Europe, Eastern
2
Great Britain
2
North America
2
Southeast Asia
2
Africa, East
1
Andes Region
1
Australia
1
Eurasia
1
Europe, Western
1
Germany
1
Madrid
1
Malaysia
1
Mexico
1
Nicaragua
1
Norway
1
Pa⩳es de la Comunidad Econ⯭ica Europea
1
Pa⩳es subdesarrollados
1
Philippines
1
Portugal
1
Slovakia
1
South Asia
1
Soviet Union
1