Religions Worldwide Stats 2014

This is a list of religious populations by proportion and population. Estimates made by reliable sources differ. The CIA's World Factbook gives the population as 7,021,836,029 (July 2012 est.) and the distribution of religions as Christian 31.59% (of which Roman Catholic 18.85%, Protestant 8.15%, Orthodox 4.96%, Anglican 1.26%), Muslim 23.2%, Hindu 15.0%, Buddhist 7.1%, Sikh 0.35%, Jewish 0.2%, Bahá'í 0.11%, other religions 10.95%, non-religious 9.66%, atheists 2.01%. (2010 est.).^[1]

http://en.wikipedia.org/wiki/List_of_religious_populations