Region
Allemagne
1
America
3
California
1
Camden
2
Camden (N.J.)
2
Canada
2
Deutschland
2
Developing countries
1
Europe
1
États-Unis
3
Georgia
1
Germany
5
Great Britain
5
Greece
2
Greene County (Ga.)
1
Grèce
1
Griechenland
1
Japan
1
Japon
1
Kentucky
1
Macon County (Ga.)
1
Montréal
2
Montréal (Québec)
2
New Jersey
3
New Netherland
1
North America
1
Pennsylvania
9
Philadelphia
4
Philadelphia (Pa.)
3
Philadelphia Metropolitan Area
1
Poland
2
Puerto Rico
1
Québec
2
Schweden
1
Shenandoah River Valley (Va. and W. Va.)
1
Southern States
1
Soviet Union
7
Sweden
2
URSS
1
USA
4
United States
95
Verenigde Staten
1
Virginia
1
États-Unis
1