Lebanon is the most religiously diverse country in the Middle East. The CIA World Factbook estimates (2020) the following (data do not include Lebanon's sizable Syrian and Palestinian refugee populations): Muslim 61.1% (30.6% Sunni, 30.5% Shia, smaller percentages of Alawites and Ismailis), Christian 33.7% (Maronite Catholics are the largest Christian group), Druze 5.2%, and very small numbers of Jews, Baha'is, Buddhists, and Hindus. A study conducted by the Lebanese Information Center and based on voter registration numbers shows that by 2011 the Christian population was stable compared to that of previous years, making up 34.35% of the population; Muslims, the Druze included, were 65.47% of the population. The World Values Survey of 2014 put the percentage of atheists in Lebanon at 3.3%.