Region
United States
484
United States --
475
Japan
38
Soviet Union
32
Soviet Union --
32
Japan --
29
China --
25
China
19
Europe --
19
Europe
18
Korea (South)
14
United states --
14
Asia
12
Developing countries
12
Israel --
12
Korea (South) --
12
Asia --
11
East Asia --
11
United States - --
11
East Asia
10
Israel
10
Latin America
10
Latin America --
10
Great Britain
9
Middle East
8
Russia --
8
European Economic Community countries --
7
France
7
Germany
7
Malaysia
7
Central America
6
Central America --
6
Germany --
6
Great Britain --
6
India
6
Iran
6
Middle East --
6
Russia
6
Africa
5
Africa --
5
Arab countries --
5
Europe, Eastern --
5
European Union countries
5
Iran --
5
Korea
5
Russia (Federation)
5
Russia (Federation) --
5
South Africa
5
Arab
4
Baltic States
4
more ...