There are conflicting reports of religious demographics. The CIA World Factbook has a 2008 estimate of 45.1% Muslim, 22.1% Christian, 14.9% animist, 2% none, and 15.9% unspecified. In 2010, a Pew Research survey found that the primary affiliation of the population is 45.1% Muslim and 19.7% Christian, with 30.9% Folk religion and 4.3 for other affiliations. A 2015 Pew-Templeton study claims a different distribution in 2010, consisting of 45.1% Muslim, 30.9% folk religions, 19.7% Christians, and 4.3% unaffiliated.