Region
Europe
3
Developing countries
2
Espagne
2
Allemagne RF
1
Central Europe
1
Communist countries
1
Eastern Europe
1
Europe centrale
1
Europe orientale
1
Europe, Central
1
Europe, Eastern
1
Finland
1
Finlande
1
Germany
1
Grande-Bretagne
1
Great Britain
1
Ireland
1
Irlande
1
Italie
1
Italy
1
Norvège
1
Norway
1
OECD countries
1
Royaume-Uni
1
Slovenia
1
Slovénie
1
Spain
1