According to a comprehensive survey of residential permits released by the Chinese Ministry of Public Security on 24 April 2007, the ten most common surnames in mainland China are Wang (王), Li (李), Zhang (张), Liu (刘), Chen (陈), Yang (杨), Huang (黄), Zhao (赵), Wu (吴), and Zhou (周). The same names were also found (in slightly different orders) by a fairly comprehensive survey of 296 million people in 2006, and by the 1982 census. The top 100 surnames cover 84.77% of China's population. The top 10 surnames each have populations greater than 20 million. The MPS survey revealed that the top 3 surnames in China have a combined population larger than Indonesia, the world's fourth-most-populous country.