PEW ResearchCenter: Muslims and Islam: Key findings in the U.S. and around the world BY MICHAEL LIPKA
SEE: http://www.pewresearch.org/fact-tank/2017/02/27/muslims-and-islam-key-findings-in-the-u-s-and-around-the-world/?utm_source=Pew+Research+Center&utm_campaign=2f41a97768-EMAIL_CAMPAIGN_2017_02_28&utm_medium=email&utm_term=0_3e953b9b70-2f41a97768-400098233