Geographic Subject
India
423
Indonesia
295
Japan
252
United States
138
Colorado
108
Soviet Union
82
Michigan
73
Sri Lanka
70
Russia (Federation)
68
Pakistan
64
Germany
52
Iowa
50
Hawaii
48
California
45
Malaysia
45
Bangladesh
43
Taiwan
39
Poland
36
Brazil
31
Hungary
31
Pennsylvania
30
Karnataka
29
Wisconsin
29
Australia
28
Great Britain
27
Missouri
26
Tropics
26
Wyoming
25
Norway
24
Bulgaria
23
New Zealand
23
Texas
23
Indiana
22
Netherlands
22
Sweden
21
Kansas
20
Maryland
20
Alabama
19
Florida
19
Italy
19
Punjab
19
Ukraine
19
Andhra Pradesh
18
Hokkaido
18
Ohio
18
West (U.S.)
18
Belgium
17
Canada
17
New York (State)
16
South Africa
16
more ...