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Organisation for Economic Co-operation and Development
40
International Energy Agency
18
International Monetary Fund
8
UNESCO Institute for Statistics
6
United Nations Industrial Development Organization
4
World Bank Group
4
European Environment Agency
2
Landman, T., University of Essex, Department of Government
2
Carter, Vachel A
1
Chevalier, Manuel
1
Davis, Basil A S
1
Finsinger, Walter
1
Mauri, Achille
1
Phelps, Leanne N
1
Sommer, Philipp S
1
Zanon, Marco
1
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Andorra
Albania
90
Armenia
90
Afghanistan
88
Algeria
88
Angola
88
Antigua and Barbuda
88
Argentina
88
Austria
87
Aruba
86
Australia
86
Azerbaijan
86
Multi-nation
86
Bahamas
82
Bahrain
82
Bangladesh
82
Barbados
80
Belarus
78
Belgium
75
Belize
74
Bosnia and Herzegovina
74
Benin
72
Bermuda
72
Bhutan
72
Bolivia
72
Botswana
72
Brazil
72
Brunei Darussalam
72
Bulgaria
67
Burkina Faso
66
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