Region
United States --
6
Southeast Asia
4
Soviet Union
4
Soviet Union --
4
Asia
3
Asia --
3
Europe
3
Europe --
3
Europe, Eastern --
3
Southeast Asia --
3
Europe, Eastern
2
Great Britain
2
Great Britain --
2
Pacific Area
2
Pacific Area --
2
Russia
2
Russia --
2
United States
2
Africa, Southern --
1
Arctic regions --
1
Argentina
1
Argentina --
1
Asia, Southeastern
1
Asia, Southeastern --
1
Asia, southeastern --
1
Australia
1
Australia --
1
Austria
1
Austria --
1
Canada --
1
Cuba
1
Cuba --
1
Developing countries
1
Developing countries --
1
East Asia
1
East Asia --
1
Falkland Islands --
1
Former Soviet republics --
1
Germany
1
Germany --
1
Indonesia
1
Indonesia --
1
Korea (South)
1
Korea (South) --
1
Korea(South)
1
Korea(South) --
1
Middle East
1
Middle East --
1
Singapore --
1
South Asia
1
more ...