Región
Europe
2
Great Britain
2
Italy
2
Canada
1
China
1
Developing countries
1
Europe, Central
1
Europe, Eastern
1
European Economic Community countries
1
European Union countries
1
Former Soviet republics
1
France
1
Germany
1
Ireland
1
Japan
1
Mauritius
1
Ontario
1
Québec (Province)
1
Russia
1
Russia (Federation)
1
Soviet Union
1
Turkey
1