Region
United States
United States --
687
China --
79
China
68
Soviet Union --
65
Soviet Union
63
United states --
47
Japan
39
Japan --
39
Asia
33
Asia --
33
Middle East
32
Middle East --
31
Europe
28
Europe --
28
Israel --
26
Israel
23
Great Britain --
19
Latin America
19
East Asia
18
Latin America --
18
Great Britain
17
India
17
Developing countries
16
East Asia --
16
India --
16
Iran --
16
Iran
15
Taiwan --
14
Central America --
12
Taiwan
12
Asia, Southeastern
11
Asia, Southeastern --
11
Russia (Federation) --
11
Central America
10
Iraq
10
Russia
10
Russia (Federation)
10
Russia --
10
Vietnam --
10
Afghanistan --
9
Developing countries --
9
Iraq --
9
Vietnam
9
Afghanistan
8
Indonesia --
8
Pakistan --
8
Caribbean Area --
7
Indonesia
7
Korea
7
more ...