Subject Region
United States
755
Great Britain
129
Canada
50
France
50
England
34
Latin America
20
New York (State)
20
Japan
19
India
18
English-speaking countries
17
Africa
16
China
16
Germany
16
Australia
15
Europe
15
Italy
14
New York
14
Mexico
13
California
12
Developing countries
11
Egypt
8
Ireland
8
New York (N.Y.)
8
South Africa
8
Soviet Union
8
Spain
8
Asia
7
South Carolina
7
Boston (Mass.)
6
Greece
6
Israel
6
Massachusetts
6
Ontario
6
Russia (Federation)
6
Taiwan
6
Austria
5
North America
5
Peru
5
Southern States
5
Argentina
4
British Columbia
4
Caribbean Area
4
Chile
4
Europe, Eastern
4
Middle West
4
Nigeria
4
Oregon
4
Southwest, New
4
Africa, Southern
3
Athens
3
mere ...