Demographics of Turkey are available for the Kurdish population, because the Turkish government has outlawed ethnic or racial censuses. An estimate by the CIA World Factbook places their proportion of the population at approximately 18%. Another estimate, according to Ibrahim Sirkeci, an ethnic Turk, in his book "The Environment of Insecurity in Turkey and the Emigration of Turkish Kurds to Germany", based on the 1990 Turkish Census and 1993 Turkish Demographic Health Survey, is 17.8%. Other estimates include 15.7% of the population according to the newspaper "Milliyet", and 23% by Kurdologist David McDowall. The Minority Rights Group report of 1985 (by Martin Short
Turkish people remaining 0.2% is mostly Christian and Jewish. There are also some estimated 10 to 15 million Alevi Muslims in Turkey. Christians in Turkey include Assyrians/Syriacs, Armenians, and Greeks. Jewish people in Turkey include those that descend from Sephardic Jews who escaped Spain in 15th century and Greek-speaking Jews from Byzantine times. There is an ethnic Turkish Protestant Christian community most of them came from recent Muslim Turkish backgrounds, rather than from ethnic minorities. According to KONDA research, only 9.7% of the population described themselves as "fully devout," while 52.8% described themselves as "religious." 69.4% of the respondents reported that they