Region
United States
399
Developing countries
81
Latin America
32
Great Britain
28
China
19
Soviet Union
12
European Union countries
11
Massachusetts
11
California
10
France
10
Europe
9
New York (State)
9
Mexico
8
New York
7
Africa
6
Canada
6
Germany
6
Japan
6
Asia
5
Eastern Europe
5
Europe, Eastern
5
Africa, Sub-Saharan
4
Brazil
4
England
4
Italy
4
Sub-Saharan Africa
4
Turkey
4
America
3
Argentina
3
Boston
3
Central Europe
3
Colombia
3
Egypt
3
Europe, Central
3
Germany (West)
3
Greece
3
India
3
OECD countries
3
West Virginia
3
Austria
2
Chile
2
Developed countries
2
East Asia
2
European Economic Community countries
2
Flanders
2
Former Soviet republics
2
Georgia
2
Guatemala
2
Honduras
2
Illinois
2
more ...