Region
United States --
United States
27
Europe
6
Europe --
5
Russia (Federation)
4
Russia (Federation) --
4
Japan
3
Japan --
3
United states --
3
Asia
2
China
2
China --
2
Pacific Area
2
Asia --
1
Canada
1
Central America
1
Central America --
1
East Asia
1
East Asia --
1
Great Britain --
1
Iran
1
Iran --
1
Pacific
1
Pacific --
1
Pacific Area --
1
Pacific area
1
Soviet Union
1
Soviet Union --
1
Taiwan
1
Taiwan --
1
United State
1
United States - --
1