Region
United States
China
406
Canada
373
Great Britain
332
Mexico
246
Europe
228
California
224
Japan
221
Soviet Union
218
West (U.S.)
211
Iraq
191
Washington (D.C.)
166
Iran
150
Latin America
148
New York (State)
145
North America
143
Cuba
126
Southern States
125
Russia (Federation)
124
Colorado
120
Vietnam
113
Middle East
106
Texas
105
Germany
94
Developing countries
91
France
89
Africa
88
New York
87
Bosnia and Herzegovina
81
Pennsylvania
79
America
77
Confederate States of America
75
Colombia
72
Alaska
71
Mexico, Gulf of
68
Asia
67
Outer space
64
Massachusetts
63
Virginia
61
New Mexico
60
Illinois
59
Central America
57
Korea (North)
57
Florida
54
Missouri River Watershed
54
Caribbean Area
53
East Asia
53
Utah
53
Israel
52
Afghanistan
51
more ...