Region
United States
417
États-Unis
92
Great Britain
29
Europe
24
Canada
11
India
10
Pennsylvania
10
China
9
Australia
8
Japan
8
Germany
7
États-Unis
7
Asia
5
Germany (West)
5
Italy
5
USA
5
Developing countries
4
Latin America
4
South Africa
4
Australie
3
Belgium
3
California
3
Colombia
3
Europe, Eastern
3
France
3
Grande-Bretagne
3
Peru
3
Philadelphia
3
Africa
2
Colombie
2
Eastern Europe
2
Europa
2
European Economic Community countries
2
European Union countries
2
Former Soviet republics
2
Ireland
2
Mexico
2
Netherlands
2
New Jersey
2
New York (State)
2
New Zealand
2
Oakland
2
Pacific Area
2
Philadelphia (Pa.)
2
Soviet Union
2
Spain
2
Turkey
2
West (U.S.)
2
Afrique
1
Alabama
1
more ...