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
Ethnic minorities in China according to a 2005 sampling, constitute about 91.9% of the total population. The next largest ethnic groups in terms of population include the Zhuang (18 million), Manchu (15 million), Hui (10 million), Miao (9 million), Uyghur (8 million), Yi (7.8 million), Tujia (8 million), Mongols (5.8 million), Tibetans (5.4 million), Buyei (3 million), Yao (3.1 million), and Koreans (2.5 million). Minority populations are growing fast due to their being unaffected by the One Child Policy. The PRC's Constitution and laws guarantee equal rights to all ethnic groups in China and help promote ethnic minority groups' economic and cultural development One