Region
United States
552
Japan
11
Europe
8
China
7
Great Britain
6
Australia
4
Colorado
4
Developing countries
4
European Economic Community countries
4
Mexico
4
Latin America
3
Northwest, Pacific
3
Turkey
3
Africa
2
Argentina
2
Asia
2
California
2
Canada
2
England
2
Illinois
2
Massachusetts
2
New York
2
New York (State)
2
Russia (Federation)
2
Africa, Sub-Saharan
1
Alaska
1
Aspen
1
Baltimore County
1
Belgium
1
Boston
1
Brazil
1
California, Southern
1
Caribbean Area
1
Caspian Sea
1
Chicago
1
Chile
1
Colombia
1
Cuzco
1
Denmark
1
Europe, Eastern
1
European Union countries
1
Exeter (England)
1
Exeter Region
1
Exeter Region (England)
1
Fairplay
1
Former Soviet republics
1
Germany (West)
1
Grand Junction
1
Gulf States
1
Hubbell Trading Post National Historic Site (Ganado, Ariz.)
1
more ...