Region
Europe, Eastern
Europe, Eastern --
31
Former Soviet republics --
8
Former Soviet republics
7
Soviet Union
3
Soviet Union --
3
Asia
2
Asia --
2
Central Europe
2
Russia (Federation)
2
Russia (Federation) --
2
Asia, Central
1
Asia, Central --
1
China
1
China --
1
Developing countries --
1
East Asia
1
East Asia --
1
Eastern Europe
1
Europe
1
Europe, Central
1
Europe, Central --
1
Europe, Eastern --
1
Europe, Eastern - --
1
Former Soviet Republics
1
Poland
1
Poland --
1
Russia
1