Region
United States
United States --
442
China --
35
Soviet Union
35
Japan
30
Japan --
28
Soviet Union --
28
Europe
27
China
26
United states --
25
Europe --
20
Asia
18
East Asia
15
Great Britain
15
Israel --
14
Middle East
14
Middle East --
14
East Asia --
13
Asia --
12
Great Britain --
12
Israel
12
Developing countries
10
India
10
Iraq
10
Taiwan
10
Taiwan --
10
India --
9
Southeast Asia
8
Arab countries --
7
Iran --
7
Iraq --
7
Latin America
7
Panama
7
Panama --
7
Southeast Asia --
7
Afghanistan --
6
Iran
6
Korea
6
Korea --
6
Latin America --
6
Pacific Area
6
Vietnam --
6
Cambodia --
5
Mexico
5
Mexico --
5
Pacific Area --
5
Russia (Federation) --
5
United States - --
5
Afghanistan
4
Arab
4
more ...