Geographic Subject
India
150
Russia (Federation)
79
Soviet Union
73
Indonesia
47
Pakistan
38
Germany
29
China
25
United States
23
Malaysia
21
Bangladesh
20
Developing countries
17
Nepal
17
Africa
16
Sri Lanka
15
Thailand
13
Siberia (Russia)
12
Asia
10
Europe
10
Turkey
10
Communist countries
9
Sumatera Utara (Indonesia)
9
Japan
8
Kalimantan Timur (Indonesia)
8
Poland
8
Russia
8
Russia, Northwestern
7
Andhra Pradesh (India)
6
Bulgaria
6
Burma
6
Europe, Eastern
6
Great Britain
6
Russia, Northern
6
Singapore
6
Sumatera Barat (Indonesia)
6
Asia, Southeastern
5
Colombia
5
France
5
Hungary
5
Iran
5
Maharashtra (India)
5
Netherlands
5
Nigeria
5
Peru
5
Southeast Asia
5
Cambodia
4
Chile
4
Egypt
4
Germany (West)
4
Gujarat (India)
4
Himachal Pradesh (India)
4
more ...