Region
United States --
77
United States
73
China --
30
Great Britain --
25
China
19
Great Britain
18
Soviet Union --
17
Soviet Union
13
Japan --
12
Developing countries --
11
India --
11
Middle East --
11
Asia, Southeastern
10
Australia --
10
Developing countries
10
Africa
9
Asia, Southeastern --
9
Europe, Eastern --
9
Japan
9
Africa --
8
Asia --
8
Europe
8
Europe --
8
Europe, Eastern
8
Malaysia --
8
Middle East
8
Southeast Asia --
8
Former Soviet republics --
7
Pakistan --
7
Asia
6
East Asia --
6
France
6
Russia --
6
Chile --
5
East Asia
5
India
5
Israel --
5
South Asia --
5
Arab countries --
4
Burma --
4
Islamic countries
4
Kuwait
4
South Africa --
4
United states --
4
Arab countries
3
Caribbean Area --
3
Commonwealth countries --
3
Egypt --
3
Ethiopia --
3
Foreign countries
3
more ...