Region
China
161
United States
150
India
143
Japan
49
Africa
45
Germany
36
France
27
Indonesia
25
Middle East
24
Asia
23
South Africa
23
Congo (Democratic Republic)
22
Burma
21
Canada
21
South America
21
Soviet Union
21
Great Britain
20
Illinois
20
Chicago
19
East Asia
19
North Carolina
17
Philippines
17
Durham
16
England
16
Iran
16
Brazil
15
Korea
15
Latin America
13
New York (State)
13
Nigeria
12
Sweden
12
Europe
11
Massachusetts
11
Boston
10
Egypt
10
New York
10
Australia
9
Korea (South)
9
Sri Lanka
9
Sudan
9
Lebanon
8
Mexico
8
Netherlands
8
Papua New Guinea
8
Africa, Central
7
Africa, North
7
California
7
Connecticut
7
Denmark
7
Switzerland
7
more ...