Region
United States
211
China
73
Japan
67
India
63
New York (State)
58
Germany
56
Great Britain
56
Indonesia
41
New York
41
Egypt
34
Canada
33
Pennsylvania
29
Europe
28
New York (N.Y.)
25
California
22
Philadelphia
22
France
19
Taiwan
18
Massachusetts
17
Germany (West)
15
Israel
15
Netherlands
15
Soviet Union
14
Turkey
14
Iran
13
Pakistan
13
Switzerland
13
Korea
12
Sweden
12
Illinois
11
South Africa
11
Arizona
9
Asia
9
Austria
9
Estonia
9
Middle East
9
Philippines
9
Africa
8
Australia
8
Brazil
8
Cambridge
8
Chicago
8
Developing countries
8
European Union countries
8
Argentina
7
England
7
Italy
7
Latin America
7
New Jersey
7
Palestine
7
more ...