The Tibetan people (; ) are an East Asian ethnic group native to Tibet. Their current population is estimated to be around 6.7 million. In addition to the majority living in Tibet Autonomous Region of China, significant numbers of Tibetans live in the Chinese provinces of Gansu, Qinghai, Sichuan, and Yunnan, as well as in India, Nepal, and Bhutan. Tibetan languages belong to the Tibeto-Burman language group. The traditional or mythological explanation of the Tibetan people's origin is that they are the descendants of the human Pha Trelgen Changchup Sempa and rock ogress Ma Drag Sinmo. It is thought that most of the Tibeto-Burman speakers in southwest China, including Tibetans, are direct descendants from the ancient Qiang people. Most Tibetans practice Tibetan Buddhism, although some observe the indigenous Bon religion and there is a small Muslim minority. Tibetan Buddhism influences Tibetan art, drama and architecture, while the harsh geography of Tibet has produced an adaptive culture of Tibetan medicine and cuisine. Demographics As of the 2014 Census, there are about 6 million Tibetans living in the Tibet Autonomous Region and the 10 Tibetan autonomous prefectures in the provinces of Gansu, Qinghai, Sichuan, and Yunnan. The SIL Ethnologue in 2009 documents an additional 189,000 Tibetic speakers living in India, 5,280 in Nepal and 4,800 in Bhutan. The Central Tibetan Administration's (CTA) Green Book (of the Tibetan Government in Exile) counts 145,150 Tibetans outside Tibet: a little over 100,000 in India; over 16,000 in Nepal; over 1,800 in Bhutan, and over 25,000 in other parts of the world. There are Tibetan communities in the United States, Australia, Brazil, Canada, Costa Rica, France, Mexico, Norway, Mongolia, Germany, Switzerland and the United Kingdom. In the Baltistan region of Northern Pakistan, the Balti people are a Muslim ethnicity of Tibetan descent numbering around 300,000. There is some dispute over the current and historical number of Tibetans. The Central Tibetan Administration claims that the 5.4 million number is a decrease from 6.3 million in 1959 while the Chinese government claims that it is an increase from 2.7 million in 1954. However, the question depends on the definition and extent of "Tibet"; the region claimed by the CTA is more expansive and China more diminutive. Also, the Tibetan administration did not take a formal census of its territory in the 1950s; the numbers provided by the administration at the time were "based on informed guesswork". PRC officials