Region
OECD countries
234
Developing countries
34
Europe
23
China
17
Asia
16
Russia (Federation)
15
Europe, Eastern
14
United States
12
Mexico
11
Países de la OCDE
9
Japan
8
Switzerland
8
Canada
7
European Union countries
7
France
7
Pacific Area
7
2
6
Africa, West
6
Brazil
6
Europe, Central
6
Great Britain
6
Italy
6
Norway
6
Pays de l'Organisation de coopération et de développement économiques
6
South Africa
6
Spain
6
Turkey
6
Balkan Peninsula
5
Baltic States
5
Chile
5
Former Soviet republics
5
Latin America
5
Luxembourg
5
Sweden
5
Ukraine
5
Asia, Central
4
Bulgaria
4
Denmark
4
Ireland
4
Kazakhstan
4
Netherlands
4
Southeast Asia
4
Australia
3
Belgium
3
Czech Republic
3
Eastern Europe
3
Finland
3
Germany
3
Germany (West)
3
Greece
3
more ...