Quote: “In the People's Republic of China, the Hui people are one of 56 officially recognized ethnic groups. Under this definition, the Hui people are defined to include all historically Muslim communities in People's Republic of China that are not included in China's other ethnic groups. Since China's Muslims speaking various Turkic, Mongolic, or Iranian languages are all included into those other groups (e.g., Uyghurs, Dongxiang 东乡族, or Tajiks) the ‘officially recognized’ Hui ethnic group consists predominantly of Chinese speakers. In fact, the "Hui nationality" is unique among China's officially recognized ethnic minorities in that it does not have any particular non-Chinese language associated with it.
(c) As of 2000, there were 8.4 million of Uyghurs in China.