Subject Region
United States
372
Great Britain
102
China
50
Developing countries
42
Japan
26
Canada
21
Europe
21
Greece
20
Rome
20
France
18
Germany
18
India
18
Mexico
17
Soviet Union
15
Indonesia
14
Africa
13
Chile
13
Latin America
11
Spain
10
East Asia
9
Asia
8
Netherlands
7
North America
7
Brazil
6
Italy
6
Espana
5
European Union countries
5
Islamic countries
5
Michigan
5
Québec (Province)
5
West (U.S.)
5
Australia
4
Dearborn
4
Egypt
4
Middle East
4
Russia (Federation)
4
Singapore
4
America
3
California
3
Colombia
3
England
3
Germany (East)
3
Iraq
3
Malaysia
3
Mediterranean Region
3
Nigeria
3
Pacific Area
3
Pakistan
3
Venezuela
3
Western countries
3
more ...