Region
United States --
10
United States
7
Europe --
2
Iran --
2
Africa
1
Africa --
1
Argentina
1
Argentina --
1
Asia
1
Asia --
1
Asia, Southeastern
1
Australia
1
Australia --
1
Bangladesh
1
Bangladesh --
1
Europe
1
Former Soviet republics --
1
Iraq --
1
Israel
1
Israel --
1
Japan --
1
Korea (North)
1
Korea (North) --
1
Malaysia
1
Malaysia --
1
Russia (Federation) --
1
Singapore
1
Singapore --
1
South Africa --
1
Soviet Union
1
Soviet Union --
1
United states --
1