Region
United States
450
Great Britain
24
Europe
22
Soviet Union
18
Germany
17
Developing countries
13
Africa
11
California
11
China
11
Latin America
10
Japan
9
England
8
Eastern Europe
7
Europe, Eastern
7
Asia
6
France
6
Mexico
6
New York (State)
6
North America
6
Alabama
5
India
5
Macon County
5
Massachusetts
5
New York
5
London
4
Southern States
4
Africa, Sub-Saharan
3
America
3
Austria
3
Canada
3
Caribbean Area
3
European Union countries
3
Middle East
3
Sub-Saharan Africa
3
Alaska
2
Arab countries
2
Australia
2
Boston
2
Chicago
2
Egypt
2
Greece
2
Hawaii
2
Illinois
2
Italy
2
Outer space
2
Pacific Area
2
Paris
2
Rome
2
Rome (Empire)
2
South America
2
more ...