Region
United States --
562
United States
552
China --
38
China
35
Soviet Union
30
Soviet Union --
30
United states --
28
Japan
27
Japan --
26
Europe
23
Europe --
22
Asia
20
Asia --
17
Middle East
14
Israel
11
Latin America
11
Latin America --
11
Middle East --
11
East Asia
10
Great Britain
10
Israel --
10
Australia --
8
Great Britain --
8
Asia, Southeastern
7
Asia, Southeastern --
7
Central America --
7
East Asia --
7
Developing countries
6
Developing countries --
6
Iran --
6
Australia
5
Central America
5
Foreign countries
5
Islamic countries
5
Pacific area --
5
Philippines --
5
Singapore
5
Singapore --
5
Vietnam
5
Canada
4
Caribbean Area
4
Caribbean Area --
4
Germany
4
Islamic countries --
4
Laos
4
Malaysia
4
Malaysia --
4
Panama --
4
Philippines
4
Russia (Federation)
4
more ...