Region
United States
248
U.S. states
87
China
6
Europe
4
European Union countries
3
Latin America
3
Argentina
2
Great Britain
2
Japan
2
Middle East
2
Russia (Federation)
2
South Africa
2
Soviet Union
2
Africa
1
Bangladesh
1
Dakar
1
Detroit (Mich.)
1
Developing countries
1
Europe, Southern
1
Europe, Western
1
France
1
Germany (West)
1
Greece
1
Guinea
1
Kankan
1
Kiev
1
Korea (South)
1
Kyïv (Ukraine)
1
Malawi
1
Mexico
1
Senegal
1
Spain
1
Switzerland
1
Tunisia
1
Ukraine
1
Western countries
1
Zimbabwe
1