Geographic Subject
India
629
United States
437
Iran
349
Indonesia
241
Texas
151
Colorado
102
Great Britain
91
Germany
82
Iowa
79
China
68
Pakistan
66
Soviet Union
62
England
59
Singapore
52
Japan
51
Michigan
50
France
45
Ohio
45
Kansas
41
Maryland
40
Thailand
34
Mississippi
33
Pennsylvania
33
Greece
31
New York (State)
31
North Carolina
31
Middle East
29
Alaska
28
Asia, Southeastern
28
Europe
27
Poland
27
West Virginia
26
Georgia
24
Ireland
24
Latin America
24
Italy
23
Washington (State)
23
Malaysia
22
North Dakota
22
New Mexico
21
Virginia
21
Bangladesh
20
Germany (West)
20
Louisiana
20
Southern States
20
Sweden
20
Turkey
20
Asia
19
Kentucky
19
Florida
18
more ...