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
Minorities in Turkey of Turkey's population. Up to 300,000 of Azeris who reside in Turkey are citizens of Azerbaijan. In the Eastern Anatolia Region, Azeris are sometimes referred to as "acem" (see Ajam) or "tat". They currently are the largest ethnic group in the city of Iğdır and second largest ethnic group in Kars. Before the 20th century, Crimean Tatars had immigrated from Crimea to Turkey in three waves: First, after the Russian annexation of Crimea in 1783; second, after the Crimean War of 1853-56; third, after the Russo-Turkish War of 1877–78. The official number of Crimean Tatars is 150,000 (in the center