Region
Europe, Eastern
7
Europe, Eastern --
6
Russia --
3
Former Soviet republics
2
Former Soviet republics --
2
Poland
2
Poland --
2
Russia
2
Asia, Central
1
Asia, Central --
1
Baltic States
1
Bulgaria
1
Bulgaria --
1
Developing countries --
1
East Asia
1
East Asia --
1
Romania
1
Romania --
1
Russia (Federation)
1
Russia (Federation) --
1