Region
Asia
United States
19
United States --
15
Asia --
10
Pacific Area
4
France
2
Pacific --
2
Pacific area
2
Soviet Union
2
Soviet Union --
2
Aisa
1
Asia - --
1
China
1
China --
1
Europe
1
Japan
1
Japan --
1
Korea
1
Korea --
1
Pacific
1
Pacific area --
1
Philippines
1
Philippines --
1
Russia --
1
Singapore
1
Singapore --
1
United states --
1