Region
prev ...
Brazil
3
Chicago
3
Chicago (Ill.)
3
Developing countries
3
Europe, Eastern
3
Florida
3
Los Angeles
3
Newburyport
3
North Carolina
3
Oxford
3
Providence
3
Russia (Federation)
3
Shanghai
3
Switzerland
3
Trenton
3
Vermont
3
Washington (D.C.)
3
Africa
2
Africa, English-speaking
2
Amsterdam
2
Annapolis
2
Arab countries
2
Argentina
2
Atlantic Ocean Region
2
Belgium
2
Berlin
2
Cairo
2
Cambridge
2
Cameroon
2
Colorado
2
Delaware
2
Detroit
2
East Asia
2
Egypt
2
Elizabeth
2
Europe, Western
2
Florence
2
Florence (Italy)
2
Germany (West)
2
Girard
2
Kansas
2
Lancaster
2
Louisiana
2
Madrid
2
Michigan
2
Middle East
2
New Haven
2
Newport
2
Portsmouth
2
Rio de Janeiro
2
more ...