Islam is the dominant religion of Kyrgyzstan. The CIA World Factbook estimates that as of 2017, 90% of the population is Muslim, with the majority being Sunni; 7% are Christian, including 3% Russian Orthodoxy, and the remainder are other religions. A 2009 Pew Research Center report indicated 86.3% of Kyrgyzstan's population adhering to Islam. The great majority of Muslims are Sunni, adhering to the Hanafi school of thought, although a 2012 Pew survey report showed that only 23% of respondents to a questionnaire chose to identify themselves as Sunni, with 64% volunteering that they were "just a Muslim". There are a few Ahmadiyya Muslims, though unrecognised by the country.