Region
Africa, North
1
Asia
4
Asia --
2
Asia, Southeastern
1
Asia, Southeastern --
1
East Asia
4
East Asia --
1
Europe
1
Israel
1
Japan --
1
Latin America
1
Latin America --
1
Malaysia
2
Middle East
2
Middle East --
1
Pacific Area
2
Singapore
1
Southeast Asia
3
Southeast Asia --
1
Soviet Union
1
Soviet Union --
1
Thailand
1
United States
3
United States --
5