Region
Europe, Eastern
81
United States
71
Europe
64
Japan
26
Europe, Central
20
Poland
19
Hungary
17
Balkan Peninsula
15
Europe, Western
15
Former Soviet republics
15
European Union countries
11
Romania
9
Russia (Federation)
9
South Africa
7
Germany
6
Afghanistan
5
Czech Republic
5
Developing countries
4
China
3
Czechoslovakia
2
Great Britain
2
Kosovo (Republic)
2
Western countries
2
États-Unis
2
Asia
1
Asia, Central
1
Belarus
1
Caucasus
1
Estonia
1
Europe, Southern
1
European Economic Community countries
1
Former Yugoslav republics
1
Former communist countries
1
Förenta staterna
1
Germany (East)
1
Indiana
1
Iraq
1
Israel
1
Middle East
1
North Macedonia
1
Pacific Area
1
Paraguay
1
Russia
1
Serbia
1
Slovakia
1
Southeast Asia
1
USA
1
Ukraine
1
Yugoslavia
1