Region
Europe
United States
17
European Union countries
16
Europe, Eastern
14
Germany
7
Russia (Federation)
5
Former Soviet republics
4
Balkan Peninsula
3
Europe, Central
3
Yugoslavia
3
Europe, Western
2
Soviet Union
2
Asia, Central
1
European Economic Community countries
1
Former Yugoslav republics
1
France
1
Great Britain
1
Israel
1
Latin America
1
Russia
1
Syria
1