Region
United States
6
United States --
5
Europe --
4
East Asia
3
Soviet Union --
3
Asia Pacific
2
Europe
2
Middle East
2
Africa, Southern
1
Asia, Southeastern --
1
Australia
1
Australia --
1
Bosnia-Herzegovina
1
Cambodia
1
Canada
1
Croatia
1
Former Soviet republics
1
France
1
Haiti
1
Iran
1
Iran --
1
Iraq
1
Japan
1
Kazakhstan
1
Korea
1
Kuwait
1
Liberia
1
Mozambique
1
South Asia
1
Soviet Union
1