This report was produced by Pew Research Center as part of the Pew-Templeton Global Religious Futures project, which analyzes religious change and its impact on societies around the world. Funding for the Global Religious Futures project comes from The Pew Charitable Trusts and the John Templeton Foundation (grant 61640).

This report is a collaborative effort based on the input and analysis of the following individuals. Find related reports online at

Primary Researchers

Stephanie Kramer, Senior Researcher        
Conrad Hackett, Associate Director of Research and Senior Demographer
Marcin Stonawski, Director, Center for Advanced Studies of Population and Religion (CASPAR)

Research Team                    

Anne Fengyan Shi, Senior Researcher
Yunping Tong, Research Associate   
Gregory A. Smith, Associate Director of Research   
Justin Nortey, Research Analyst      
Joshua Alvarado, Research Assistant          
Alan Cooperman, Director of Religion Research     

Editorial and Graphic Design

Dalia Fahmy, Senior Writer and Editor                   
Michael Lipka, Editorial Manager                           
Rebecca Leppert, Editorial Assistant          
Bill Webster, Senior Information Graphics Designer

Communications and Web Publishing

Stacy Rosenberg, Associate Director, Digital
Reem Nadeem, Associate Digital Producer            
Anna Schiller, Senior Communications Manager
Kelsey Beveridge, Communications Associate        

Others at Pew Research Center who provided guidance include Andrew Mercer, senior research methodologist; Phillip Connor, former senior researcher; and Jacob Ausubel, former research assistant.