Region
Former Soviet republics --
10
Russia (Federation) --
7
Former Soviet republics
6
Russia (Federation)
5
Asia, Central --
4
Europe --
4
United States --
4
Former Soviet Republics
3
Great Britain --
3
United States
3
China --
2
Germany (West)
2
Germany (West) --
2
Great Britain
2
India
2
India --
2
Japan --
2
Kazakhstan --
2
South Africa --
2
Asia
1
Asia --
1
Asia, Southeastern
1
Asia, Southeastern --
1
Azerbaijan --
1
Balkan Peninsula
1
Balkan Peninsula --
1
Canada
1
Caucasian States --
1
China
1
East Asia
1
East Asia --
1
Europe
1
Europe, Eastern
1
Europe, Eastern --
1
European Union Countries --
1
Germany
1
Germany --
1
Hungary
1
Iran
1
Iran --
1
Japan
1
Kazakhstan
1
Moldova --
1
North Sea
1
Romania
1
Russia --
1
Russia(Federation) --
1
Soviet Union --
1
Sri Lanka
1
Sri Lanka --
1
more ...