Region
United States
428
Pennsylvania
33
New Jersey
28
États-Unis
27
Philadelphia
15
Soviet Union
11
Canada
9
Europe
8
Great Britain
8
Latin America
8
Argentina
6
South Africa
6
Baltic States
5
Caribbean Area
4
Japan
4
Washington (D.C.)
4
Africa, Southern
3
Amérique latine
3
Australia
3
Colombia
3
Europe, Eastern
3
Greece
3
Iraq
3
Philadelphia (Pa.)
3
Philadelphia Metropolitan Area
3
Southern States
3
Spain
3
Arizona
2
Asia
2
Balkan Peninsula
2
Chile
2
Colorado
2
Delaware River Valley (N.Y.-Del. and N.J.)
2
Dover
2
Eastern Europe
2
Europe de l'Est
2
Former Soviet republics
2
France
2
Germany (West)
2
India
2
Lithuania
2
Maryland
2
Middlesex County
2
New York
2
New York (State)
2
North Dakota
2
Southern Africa
2
Venezuela
2
West Virginia
2
Africa
1
more ...