Region
Asia
1
Austria
2
Baltic States
1
Europe
10
Europe, Eastern
1
Europe, Southern
1
European Economic Community countries
4
European Union countries
154
Former communist countries
1
Germany
2
Great Britain
6
Ireland
1
Italy
1
Mediterranean Region
1
Nederland
1
Netherlands
3
North America
1
Pa⩳es de la Uni⯮ Europea
1
Russia (Federation)
2
Southeast Asia
1
Spain
1
Switzerland
2
Turkey
1
United States
3
Yugoslavia
1