Region
United States
347
Great Britain
26
China
16
Europe
16
New York (State)
14
California
10
Massachusetts
10
New York
10
Developing countries
9
Canada
8
Arab countries
7
Japan
7
Italy
6
New England
6
Pennsylvania
6
Soviet Union
6
West (U.S.)
6
Boston
5
Illinois
5
America
4
Australia
4
European Union countries
4
Los Angeles
4
South Africa
4
India
3
Michigan, Lake
3
New Jersey
3
New York Harbor (N.Y. and N.J.)
3
North America
3
Russia (Federation)
3
Southern States
3
Taiwan
3
Baltimore
2
Chicago
2
Cuba
2
Eastern Europe
2
Egypt
2
Erie Canal (N.Y.)
2
Europe, Eastern
2
France
2
Germany (West)
2
Indiana
2
Israel
2
Louisiana
2
Maryland
2
Middle West
2
Ohio
2
Panama Canal (Panama)
2
Philadelphia
2
Qatar
2
more ...