Region
United States --
26
United States
24
Europe
6
Europe --
5
Russia (Federation)
4
Russia (Federation) --
4
China
2
China --
2
United states --
2
Asia
1
Asia --
1
Canada
1
Central America
1
Central America --
1
East Asia
1
Great Britain --
1
Iran
1
Iran --
1
Japan
1
Japan --
1
Pacific
1
Pacific --
1
Pacific Area
1
Soviet Union
1
Soviet Union --
1
Taiwan
1
Taiwan --
1
United State
1