Subject Region
United States
353
Great Britain
94
Japan
37
Developing countries
33
England
32
India
32
Canada
28
Europe
26
New York (State)
23
Mexico
21
New York
21
China
20
Massachusetts
20
California
17
France
16
European Union countries
15
Ontario
14
Germany
12
Soviet Union
10
Spain
10
Asia
9
Australia
9
Los Angeles
9
Pennsylvania
8
Espana
7
Foreign countries
7
Italy
7
New England
7
British Columbia
6
Ireland
6
Latin America
6
London
6
Oregon
6
Belgium
5
London (England)
5
Philippines
5
Southern States
5
Taiwan
5
Turkey
5
Arab countries
4
Boston
4
Ecuador
4
Egypt
4
Israel
4
Lowell
4
Paris
4
Pittsburgh
4
Scotland
4
Sweden
4
Toronto
4
more ...