Although the majority of China's population is of the Han nationality (which accounts for more than 90% of China's population), the non-Han ethnic groups have a population of more than 100 million. Until now, China has officially identified, except for other unknown ethnic groups and foreigners with Chinese citizenship, 56 ethnic groups. In addition, ethnic groups vary widely in size. With a population of more than 15 million, the Zhuang have the largest ethnic minority, and the Lhoba, with only two thousand or more, the smallest... Errata: Data of the units with funds from Hong Kong, Macau & Taiwan and of foreign funded units in the Table 12 (Average wage of employed persons in urban units by status of registration [yuan]) have mistakes.