Region
Soviet Union --
Soviet Union
17
Europe, Eastern --
5
Europe, Eastern
4
Asia
3
Asia --
3
Russia (Federation) --
2
United States --
2
Africa, Southern --
1
Baltic States
1
Caribbean Area --
1
Europe --
1
Former Soviet republics
1
Former Soviet republics --
1
Latvia --
1
Russia
1
Russia (Federation)
1
United States
1
United states --
1
Yugoslavia --
1