Region
Bulgaria
1
Canada
3
Central Europe
5
China
1
Chine
1
Colombia
2
Czech Republic
2
Eastern Europe
7
Europa
1
Europe
7
Europe centrale
1
Europe, Central
5
Europe, Eastern
7
États-Unis
4
Former Soviet republics
1
Germany
1
Hongrie
1
Hungary
2
Japan
1
Latin America
2
Mexico
1
Pays de l'Union européenne
1
Pologne
1
Romania
2
Soviet Union
1
United States
9