Region
United States
351
Great Britain
25
China
22
Europe
22
England
13
Africa South of the Sahara
12
Latin America
11
Africa
10
Colorado
8
India
8
Soviet Union
8
Australia
7
Cuba
7
Developing countries
6
France
6
Rome
6
Greece
5
New York (N.Y.)
5
South Africa
5
Brazil
4
Germany
4
Italy
4
Middle East
4
New York
4
New York (State)
4
Nigeria
4
Russia (Federation)
4
Southern States
4
U.S. states
4
Asia
3
Asia, Southeastern
3
California
3
Egypt
3
Hawaii
3
Japan
3
Kenya
3
Mexico
3
Russia
3
South America
3
W.
3
Africa, North
2
Africa, Sub-Saharan
2
Birmingham (Ala.)
2
Canada
2
Colombia
2
Florida
2
Iran
2
London (England)
2
Pacific Area
2
Pennsylvania
2
more ...