Region
United States
688
Developing countries
26
European Union countries
26
Great Britain
25
Europe
20
India
18
China
17
Latin America
17
Japan
15
Canada
11
Colombia
10
Greece
9
Mexico
9
Caribbean Area
8
France
8
Germany (West)
8
Africa
7
Israel
7
Asia
5
European Economic Community countries
5
Germany
5
Afghanistan
4
England
4
Europe, Eastern
4
Indonesia
4
Romania
4
Argentina
3
Australia
3
Cyprus
3
Denmark
3
East Asia
3
Italy
3
Kosovo (Republic)
3
Nigeria
3
OECD countries
3
Panama
3
Paraguay
3
Russia (Federation)
3
Saint Kitts and Nevis
3
South Africa
3
Spain
3
Sweden
3
Ukraine
3
Washington (D.C.)
3
Albania
2
Armenia
2
Austria
2
Bolivia
2
Burkina Faso
2
California
2
more ...