Religion in Burundi is diverse, with Christianity being the dominant faith. According to a 2008 estimate in CIA Factbook, about 86 percent of the population of Burundi is Christian (62.1% being Roman Catholic, 23.9% being Protestant), 7.9% follow traditional religions, and 2.5 percent is Muslim (mainly Sunni). In contrast, another estimate by the Encyclopedia of Africa in 2010, states that 67 percent of the Burundi's people are Christians, 23% follow traditional religions, and 10% are Muslims or adherents of other faiths.