Region
United States
221
China
76
France
42
Germany
39
Great Britain
37
Japan
31
Soviet Union
26
Russia
21
Europe
20
England
16
Massachusetts
9
Italy
8
India
7
Latin America
7
Developing countries
6
Spain
5
Africa
4
Arab countries
4
Beijing
4
California
4
Germany (East)
4
Germany (West)
4
Paris
4
Taiwan
4
Asia
3
California, Northern
3
Cambridge
3
Korea
3
London
3
Mexico
3
Middle East
3
New England
3
Pakistan
3
Paris (France)
3
Russia (Federation)
3
Shanghai
3
Southern States
3
U.S.
3
Afghanistan
2
Beijing (China)
2
Berlin
2
Bristol (Avon)
2
Canada
2
Central America
2
English-speaking countries
2
Europe, Western
2
European Economic Community countries
2
FRANCE
2
Florence
2
Foreign countries
2
more ...