Sources:
1 Pew Research Center, April 2, 2015, "The Future of World Religions: Population Growth Projections, 2010-2050
2 Pew Research Center, April 11, 2017, "Global Restrictions on Religion Rise Modestly in 2015, Reversing Downward Trend"
3 Pew Research Center, Nov. 13, 2014, "Religion in Latin America: Widespread Change in a Historically Catholic Region"
4 Pew Research Center, March 22, 2016, "The Gender Gap in Religion Around the World"/p>
5 Pew Research Center, April 5, 2017, "The Changing Global Religious Landscape"
6 Pew Research Center, Dec. 13, 2016, "Religion and Education Around the World"