policy_source_title: totals

abs rel
Council of Europe 100 11.9%
City of New York 74 8.8%
EUR-Lex 50 6.0%
Publications Office of the European Union 42 5.0%
House Committees 34 4.1%
World Meteorological Organization 29 3.5%
Government Publishing Office 27 3.2%
The UK Government 23 2.7%
National Renewable Energy Laboratory 22 2.6%
UNESCO 20 2.4%
Law Commission 18 2.1%
German Marshall Fund 12 1.4%
European Parliamentary Research Service 11 1.3%
State of Maryland 11 1.3%
Brookings Institute 10 1.2%
State of California 10 1.2%
Federal Register 9 1.1%
State of Colorado 9 1.1%
State of Hawaii 9 1.1%
Government of Canada 8 1.0%
RAND Corporation 8 1.0%
State of Texas 8 1.0%
Commonwealth of Pennsylvania 7 0.8%
EPA 7 0.8%
European Parliament Plenary 7 0.8%
Joint Research Centre 7 0.8%
NBER 7 0.8%
World Bank 7 0.8%
Atlantic Council 6 0.7%
Senate Committees 6 0.7%
State of Alaska 6 0.7%
Cato Institute 5 0.6%
Council of the European Union 5 0.6%
Guidelines in PubMed Central 5 0.6%
Hansard UK 5 0.6%
Inter-American Development Bank 5 0.6%
Mercatus Center 5 0.6%
State of Indiana 5 0.6%
Analysis & Policy Observatory 4 0.5%
Carnegie Endowment for International Peace 4 0.5%
Congressional Record 4 0.5%
European Economic and Social Committee 4 0.5%
IIASA 4 0.5%
Istituto Affari Internazionali 4 0.5%
NHS Trusts 4 0.5%
Regeringskansliet 4 0.5%
State of Washington 4 0.5%
Banco de España 3 0.4%
Centers for Disease Control and Prevention (CDC) 3 0.4%
European Parliament Committees 3 0.4%
Folketinget 3 0.4%
NHS Scotland 3 0.4%
NICE 3 0.4%
State of Georgia 3 0.4%
State of Michigan 3 0.4%
State of Minnesota 3 0.4%
State of North Carolina 3 0.4%
Sveriges Riksdag 3 0.4%
World Health Organization 3 0.4%
ASPE 2 0.2%
Arctic Council 2 0.2%
Asian Development Bank 2 0.2%
Boletín Oficial del Estado 2 0.2%
CEPS 2 0.2%
CGIAR 2 0.2%
CNCDH 2 0.2%
Chatham House 2 0.2%
Congressional Research Service 2 0.2%
Food and Agriculture Organization of the United Nations 2 0.2%
IZA Institute of Labor Economics 2 0.2%
Konrad Adenauer Stiftung 2 0.2%
Korea Development Institute 2 0.2%
La Documentation Française 2 0.2%
Manhattan Institute 2 0.2%
New America 2 0.2%
New York State 2 0.2%
RSA 2 0.2%
State of Idaho 2 0.2%
State of Illinois 2 0.2%
State of Louisiana 2 0.2%
State of Missouri 2 0.2%
U.S. Government Accountability Office 2 0.2%
UK Parliament Select Committee Publications 2 0.2%
AHRQ 1 0.1%
American Legislative Exchange Council 1 0.1%
An Roinn Dlí agus Cirt 1 0.1%
Australian Government Department of the Environment and Energy 1 0.1%
BIS 1 0.1%
Baden-Wüerttemberg.de 1 0.1%
Bayerische Staatsregierung 1 0.1%
Belgian Health Care Knowledge Centre 1 0.1%
Boston Consulting Group 1 0.1%
C.D. Howe Institute 1 0.1%
CEEPR 1 0.1%
Canadian Agency for Drugs and Technologies in Health 1 0.1%
Center for Court Innovation 1 0.1%
Center for Global Development 1 0.1%
Center for Strategic and International Studies 1 0.1%
City of Detroit 1 0.1%
City of Houston 1 0.1%
City of Los Angeles 1 0.1%
City of Seattle 1 0.1%
Colorado General Assembly Legislative Council 1 0.1%
Commonwealth Fund 1 0.1%
Commonwealth of Massachusetts 1 0.1%
Commonwealth of Virginia 1 0.1%
Constitution Unit 1 0.1%
Council of Europe (CDPC) 1 0.1%
Council of Europe (Parliamentary Assembly) 1 0.1%
DOC Research Institute 1 0.1%
Ecologic Institute 1 0.1%
European Marine Board 1 0.1%
French Government Ministries 1 0.1%
Friends of Europe 1 0.1%
GLOBSEC 1 0.1%
Gatestone Institute 1 0.1%
Government of India 1 0.1%
Government of Italy 1 0.1%
Government of Latvia 1 0.1%
Government of Singapore 1 0.1%
Government of Switzerland 1 0.1%
Government of the Philippines 1 0.1%
Hansard Canada 1 0.1%
Hellenic Foundation for European and Foreign Policy 1 0.1%
Heritage Foundation 1 0.1%
Independence Institute 1 0.1%
Independent Institute 1 0.1%
Institute for Defense Analysis 1 0.1%
Institute for Strategic Dialogue 1 0.1%
Institute of Race Relations 1 0.1%
International Committee of the Red Cross 1 0.1%
Irish Environmental Protection Agency 1 0.1%
Mises Institute 1 0.1%
Northern Ireland Assembly Research and Information Service 1 0.1%
Northern Ireland Executive 1 0.1%
Norwegian Environment Agency 1 0.1%
Office National des Forêts 1 0.1%
Office for National Statistics 1 0.1%
Office of the Surgeon General 1 0.1%
Oireachtas Éireann 1 0.1%
Organization for Security and Co-operation in Europe 1 0.1%
PBL Netherlands Environmental Assessment Agency 1 0.1%
Province of Nova Scotia 1 0.1%
Public Policy Forum 1 0.1%
Regjeringa.no 1 0.1%
Rijksoverheid 1 0.1%
Rosa-Luxemburg-Stiftung 1 0.1%
Royal College of Psychiatrists 1 0.1%
Royal Society 1 0.1%
Scottish Parliament Research Briefings 1 0.1%
State of Tennessee 1 0.1%
Stiftung Wissenschaft und Politik 1 0.1%
Sustainable Development Policy Institute 1 0.1%
The Cobden Centre 1 0.1%
UNAIDS 1 0.1%
Umwelt Bundesamt 1 0.1%
United Nations 1 0.1%
United Nations CEPAL 1 0.1%
WWF 1 0.1%
World Economic Forum 1 0.1%
World Energy Council 1 0.1%
World Resources Institute 1 0.1%
Zorginstituut Nederland 1 0.1%

policy_source_title: per year

1981

abs rel
IIASA 1 100.0%

1982

abs rel
IIASA 1 100.0%

1986

abs rel
IIASA 1 100.0%

1989

abs rel
Government of Canada 1 100.0%

1999

abs rel
World Meteorological Organization 2 66.7%
EPA 1 33.3%

2000

abs rel
State of Alaska 1 50.0%
UNESCO 1 50.0%

2001

abs rel
National Renewable Energy Laboratory 2 40.0%
Congressional Research Service 1 20.0%
State of Georgia 1 20.0%
The UK Government 1 20.0%

2002

abs rel
Government Publishing Office 2 66.7%
Centers for Disease Control and Prevention (CDC) 1 33.3%

2003

abs rel
EPA 1 50.0%
Umwelt Bundesamt 1 50.0%

2004

abs rel
Joint Research Centre 2 66.7%
World Energy Council 1 33.3%

2005

abs rel
The UK Government 2 66.7%
State of California 1 33.3%

2006

abs rel
City of New York 1 33.3%
Regeringskansliet 1 33.3%
World Meteorological Organization 1 33.3%

2007

abs rel
State of Texas 2 40.0%
Senate Committees 1 20.0%
The UK Government 1 20.0%
U.S. Government Accountability Office 1 20.0%

2008

abs rel
Government Publishing Office 2 20.0%
Inter-American Development Bank 2 20.0%
Bayerische Staatsregierung 1 10.0%
New York State 1 10.0%
Senate Committees 1 10.0%
U.S. Government Accountability Office 1 10.0%
UNESCO 1 10.0%
World Meteorological Organization 1 10.0%

2009

abs rel
Joint Research Centre 2 22.2%
NHS Scotland 2 22.2%
Government Publishing Office 1 11.1%
Guidelines in PubMed Central 1 11.1%
IIASA 1 11.1%
PBL Netherlands Environmental Assessment Agency 1 11.1%
UNESCO 1 11.1%

2010

abs rel
Government Publishing Office 2 25.0%
World Meteorological Organization 2 25.0%
Food and Agriculture Organization of the United Nations 1 12.5%
Heritage Foundation 1 12.5%
NHS Scotland 1 12.5%
Publications Office of the European Union 1 12.5%

2011

abs rel
Brookings Institute 2 15.4%
CGIAR 2 15.4%
Commonwealth Fund 1 7.7%
Government Publishing Office 1 7.7%
Government of Canada 1 7.7%
Joint Research Centre 1 7.7%
NICE 1 7.7%
Publications Office of the European Union 1 7.7%
UNESCO 1 7.7%
World Meteorological Organization 1 7.7%
Zorginstituut Nederland 1 7.7%

2012

abs rel
House Committees 2 22.2%
World Bank 2 22.2%
EPA 1 11.1%
Institute for Defense Analysis 1 11.1%
Northern Ireland Assembly Research and Information Service 1 11.1%
State of Alaska 1 11.1%
UNESCO 1 11.1%

2013

abs rel
Publications Office of the European Union 2 11.8%
State of Washington 2 11.8%
ASPE 1 5.9%
Analysis & Policy Observatory 1 5.9%
EPA 1 5.9%
Government Publishing Office 1 5.9%
House Committees 1 5.9%
Independence Institute 1 5.9%
Joint Research Centre 1 5.9%
State of Alaska 1 5.9%
State of California 1 5.9%
State of Colorado 1 5.9%
State of Minnesota 1 5.9%
State of Missouri 1 5.9%
World Meteorological Organization 1 5.9%

2014

abs rel
Government Publishing Office 4 18.2%
World Meteorological Organization 4 18.2%
Publications Office of the European Union 3 13.6%
An Roinn Dlí agus Cirt 1 4.5%
Baden-Wüerttemberg.de 1 4.5%
Boletín Oficial del Estado 1 4.5%
Brookings Institute 1 4.5%
European Parliamentary Research Service 1 4.5%
Federal Register 1 4.5%
NICE 1 4.5%
New York State 1 4.5%
Office National des Forêts 1 4.5%
RAND Corporation 1 4.5%
WWF 1 4.5%

2015

abs rel
State of Maryland 5 16.1%
World Meteorological Organization 3 9.7%
Cato Institute 2 6.5%
Federal Register 2 6.5%
Government Publishing Office 2 6.5%
Boston Consulting Group 1 3.2%
Brookings Institute 1 3.2%
Centers for Disease Control and Prevention (CDC) 1 3.2%
City of Houston 1 3.2%
European Parliamentary Research Service 1 3.2%
Government of Canada 1 3.2%
Northern Ireland Executive 1 3.2%
Publications Office of the European Union 1 3.2%
RAND Corporation 1 3.2%
Senate Committees 1 3.2%
State of California 1 3.2%
State of Georgia 1 3.2%
State of Hawaii 1 3.2%
State of Louisiana 1 3.2%
State of Michigan 1 3.2%
The Cobden Centre 1 3.2%
The UK Government 1 3.2%

2016

abs rel
Publications Office of the European Union 4 12.9%
Government Publishing Office 3 9.7%
State of Maryland 3 9.7%
EPA 2 6.5%
European Parliamentary Research Service 2 6.5%
Arctic Council 1 3.2%
Brookings Institute 1 3.2%
City of Seattle 1 3.2%
Federal Register 1 3.2%
Gatestone Institute 1 3.2%
Government of Singapore 1 3.2%
Government of Switzerland 1 3.2%
Guidelines in PubMed Central 1 3.2%
Institute of Race Relations 1 3.2%
International Committee of the Red Cross 1 3.2%
Manhattan Institute 1 3.2%
Mercatus Center 1 3.2%
NBER 1 3.2%
NICE 1 3.2%
State of Illinois 1 3.2%
World Bank 1 3.2%
World Meteorological Organization 1 3.2%

2017

abs rel
House Committees 7 11.7%
State of Colorado 7 11.7%
Publications Office of the European Union 4 6.7%
Government of Canada 3 5.0%
State of Alaska 3 5.0%
Analysis & Policy Observatory 2 3.3%
Brookings Institute 2 3.3%
Government Publishing Office 2 3.3%
Hansard UK 2 3.3%
NBER 2 3.3%
National Renewable Energy Laboratory 2 3.3%
State of California 2 3.3%
State of North Carolina 2 3.3%
American Legislative Exchange Council 1 1.7%
Arctic Council 1 1.7%
Colorado General Assembly Legislative Council 1 1.7%
Congressional Record 1 1.7%
Hansard Canada 1 1.7%
Independent Institute 1 1.7%
Istituto Affari Internazionali 1 1.7%
Manhattan Institute 1 1.7%
Mercatus Center 1 1.7%
NHS Trusts 1 1.7%
RAND Corporation 1 1.7%
Rosa-Luxemburg-Stiftung 1 1.7%
Royal Society 1 1.7%
State of Indiana 1 1.7%
State of Louisiana 1 1.7%
State of Maryland 1 1.7%
State of Michigan 1 1.7%
State of Minnesota 1 1.7%
State of Texas 1 1.7%
World Meteorological Organization 1 1.7%

2018

abs rel
Commonwealth of Pennsylvania 7 12.7%
House Committees 7 12.7%
Government Publishing Office 4 7.3%
Istituto Affari Internazionali 3 5.5%
NHS Trusts 2 3.6%
National Renewable Energy Laboratory 2 3.6%
Publications Office of the European Union 2 3.6%
State of Indiana 2 3.6%
State of Texas 2 3.6%
The UK Government 2 3.6%
World Meteorological Organization 2 3.6%
Australian Government Department of the Environment and Energy 1 1.8%
C.D. Howe Institute 1 1.8%
CEEPR 1 1.8%
Chatham House 1 1.8%
City of Los Angeles 1 1.8%
Congressional Record 1 1.8%
Congressional Research Service 1 1.8%
Council of Europe (CDPC) 1 1.8%
EPA 1 1.8%
Ecologic Institute 1 1.8%
European Economic and Social Committee 1 1.8%
Government of the Philippines 1 1.8%
RAND Corporation 1 1.8%
Regeringskansliet 1 1.8%
Senate Committees 1 1.8%
State of California 1 1.8%
State of Idaho 1 1.8%
State of Minnesota 1 1.8%
State of Washington 1 1.8%
Sveriges Riksdag 1 1.8%

2019

abs rel
City of New York 58 32.4%
EUR-Lex 22 12.3%
Publications Office of the European Union 13 7.3%
German Marshall Fund 12 6.7%
House Committees 5 2.8%
State of Hawaii 5 2.8%
The UK Government 5 2.8%
UNESCO 5 2.8%
National Renewable Energy Laboratory 4 2.2%
Government Publishing Office 3 1.7%
State of California 3 1.7%
State of Texas 3 1.7%
CEPS 2 1.1%
Carnegie Endowment for International Peace 2 1.1%
Congressional Record 2 1.1%
European Parliamentary Research Service 2 1.1%
Guidelines in PubMed Central 2 1.1%
Mercatus Center 2 1.1%
New America 2 1.1%
RAND Corporation 2 1.1%
RSA 2 1.1%
World Bank 2 1.1%
World Meteorological Organization 2 1.1%
Analysis & Policy Observatory 1 0.6%
City of Detroit 1 0.6%
Federal Register 1 0.6%
Food and Agriculture Organization of the United Nations 1 0.6%
Government of Canada 1 0.6%
Government of Italy 1 0.6%
Government of Latvia 1 0.6%
Hellenic Foundation for European and Foreign Policy 1 0.6%
Joint Research Centre 1 0.6%
Konrad Adenauer Stiftung 1 0.6%
Oireachtas Éireann 1 0.6%
Province of Nova Scotia 1 0.6%
Public Policy Forum 1 0.6%
Regjeringa.no 1 0.6%
State of Idaho 1 0.6%
State of Illinois 1 0.6%
State of Washington 1 0.6%
UK Parliament Select Committee Publications 1 0.6%
World Economic Forum 1 0.6%

2020

abs rel
Council of Europe 63 43.8%
House Committees 7 4.9%
Atlantic Council 6 4.2%
EUR-Lex 6 4.2%
Publications Office of the European Union 5 3.5%
The UK Government 5 3.5%
National Renewable Energy Laboratory 4 2.8%
Inter-American Development Bank 3 2.1%
NBER 3 2.1%
World Meteorological Organization 3 2.1%
Council of the European Union 2 1.4%
European Parliamentary Research Service 2 1.4%
Federal Register 2 1.4%
Senate Committees 2 1.4%
State of Maryland 2 1.4%
AHRQ 1 0.7%
Brookings Institute 1 0.7%
CNCDH 1 0.7%
Cato Institute 1 0.7%
Center for Global Development 1 0.7%
Chatham House 1 0.7%
Commonwealth of Massachusetts 1 0.7%
Commonwealth of Virginia 1 0.7%
European Parliament Committees 1 0.7%
French Government Ministries 1 0.7%
Guidelines in PubMed Central 1 0.7%
IZA Institute of Labor Economics 1 0.7%
Irish Environmental Protection Agency 1 0.7%
Konrad Adenauer Stiftung 1 0.7%
Korea Development Institute 1 0.7%
La Documentation Française 1 0.7%
Mercatus Center 1 0.7%
Norwegian Environment Agency 1 0.7%
Organization for Security and Co-operation in Europe 1 0.7%
RAND Corporation 1 0.7%
State of Georgia 1 0.7%
State of Indiana 1 0.7%
State of Michigan 1 0.7%
State of Missouri 1 0.7%
State of Tennessee 1 0.7%
UNESCO 1 0.7%
World Bank 1 0.7%
World Health Organization 1 0.7%
World Resources Institute 1 0.7%

2021

abs rel
Council of Europe 37 21.1%
EUR-Lex 20 11.4%
City of New York 15 8.6%
Law Commission 9 5.1%
National Renewable Energy Laboratory 8 4.6%
UNESCO 8 4.6%
European Parliament Plenary 7 4.0%
House Committees 5 2.9%
The UK Government 5 2.9%
World Meteorological Organization 4 2.3%
Banco de España 3 1.7%
European Parliamentary Research Service 3 1.7%
Hansard UK 3 1.7%
Publications Office of the European Union 3 1.7%
State of Hawaii 3 1.7%
Asian Development Bank 2 1.1%
Brookings Institute 2 1.1%
Cato Institute 2 1.1%
Council of the European Union 2 1.1%
European Economic and Social Committee 2 1.1%
European Parliament Committees 2 1.1%
Federal Register 2 1.1%
Folketinget 2 1.1%
BIS 1 0.6%
Belgian Health Care Knowledge Centre 1 0.6%
CNCDH 1 0.6%
Canadian Agency for Drugs and Technologies in Health 1 0.6%
Center for Court Innovation 1 0.6%
Center for Strategic and International Studies 1 0.6%
Council of Europe (Parliamentary Assembly) 1 0.6%
European Marine Board 1 0.6%
Government of India 1 0.6%
IZA Institute of Labor Economics 1 0.6%
La Documentation Française 1 0.6%
NBER 1 0.6%
NHS Trusts 1 0.6%
Regeringskansliet 1 0.6%
Rijksoverheid 1 0.6%
Royal College of Psychiatrists 1 0.6%
State of California 1 0.6%
State of Colorado 1 0.6%
State of Indiana 1 0.6%
State of North Carolina 1 0.6%
Stiftung Wissenschaft und Politik 1 0.6%
Sustainable Development Policy Institute 1 0.6%
UK Parliament Select Committee Publications 1 0.6%
United Nations CEPAL 1 0.6%
World Bank 1 0.6%
World Health Organization 1 0.6%

2022

abs rel
Law Commission 9 23.7%
Publications Office of the European Union 3 7.9%
Carnegie Endowment for International Peace 2 5.3%
EUR-Lex 2 5.3%
Sveriges Riksdag 2 5.3%
ASPE 1 2.6%
Boletín Oficial del Estado 1 2.6%
Centers for Disease Control and Prevention (CDC) 1 2.6%
Constitution Unit 1 2.6%
Council of the European Union 1 2.6%
European Economic and Social Committee 1 2.6%
Folketinget 1 2.6%
Friends of Europe 1 2.6%
Institute for Strategic Dialogue 1 2.6%
Mises Institute 1 2.6%
Office for National Statistics 1 2.6%
RAND Corporation 1 2.6%
Regeringskansliet 1 2.6%
Scottish Parliament Research Briefings 1 2.6%
The UK Government 1 2.6%
UNAIDS 1 2.6%
UNESCO 1 2.6%
United Nations 1 2.6%
World Health Organization 1 2.6%
World Meteorological Organization 1 2.6%

policy_source_title: missing year

abs rel
DOC Research Institute 1 20.0%
GLOBSEC 1 20.0%
Government of Canada 1 20.0%
Korea Development Institute 1 20.0%
Office of the Surgeon General 1 20.0%