Region
United States
284
Germany
18
Great Britain
16
Soviet Union
15
Washington (D.C.)
14
Europe
13
Southern States
12
China
9
Russia (Federation)
9
Japan
8
France
7
South Carolina
7
Germany (East)
6
Texas
6
Canada
5
Iran
5
Mexico
5
Netherlands
5
New York (State)
5
Western countries
5
Cuba
4
Israel
4
New York (N.Y.)
4
Northeastern States
4
Africa
3
America
3
Ireland
3
Islamic countries
3
Kentucky
3
Korea (North)
3
Massachusetts
3
New York
3
North Carolina
3
Pennsylvania
3
South Africa
3
Spain
3
Tennessee
3
Alabama
2
Argentina
2
Austria
2
Belarus
2
Boston
2
Boston (Mass.)
2
Confederate States of America
2
Dakota Territory
2
Developing countries
2
Europe, Eastern
2
Former Soviet republics
2
Germany (West)
2
Italy
2
more ...