in the world, and their total number is around the population of the USA, the third most populous country in the world. The next five--Yang, Huang, Zhao, Wu, and Zhou—were each shared by more than 20 million Chinese. Twelve moreXu, Sun, Ma, Zhu, Hu, Guo, He, Gao, Lin, Luo, Zheng, and Liangwere each shared by more than 10 million. All together, the top hundred surnames accounted for 84.77% of China's population. By way of comparison, the 2000 census found the most common surname in the United StatesSmithhad fewer than 2.4 million occurrences and made up only 0.84% of the general population. The top 100 surnames accounted for only 16.4% of the US population, and reaching 89.8% of the US population required more than 150,000 surnames. Surname list Notes Other surveys 2006 multi-year survey and study conducted by Yuan Yida, a researcher at the Chinese Academy of Sciences's Institute of Genetics and Developmental Biology, using a sample size of 296 million spread across 1,110 counties and cities and recording around 4,100 surnames. 1990: Ji Yuwen Publishing House, based on a sample size of 174,900. 1987 study conducted by Yuan Yida with a sample size of 570,000. 1977 study published by Li Dongming, a Chinese historian, as "Surname" (《姓》) in Dongfang Magazine. 400 character list In 2013 the Fuxi Institution compiled a ranking of the 400 most common surnames in China. Taiwan According to a comprehensive survey of residential permits released by the Taiwanese Ministry of the Interior's Department of Population in 2016, Taiwan has only 1,503 surnames. The top ten surnames in Taiwan accounted for 52.77% of the general population, and the top 100 accounted for 96.56%. Other surveys 1994–2011: The American researcher Chih-Hao Tsai has compiled unauthoritative annual surveys of the most common surnames on Taiwan based on published lists of all successful applicants taking Taiwan's Joint College Entrance Exam. The test was mandatory for college entrance until 2002 and is still quite common, with more than a hundred thousand successful applicants a year and a pass rate for all test takers between 60 and 90%. Philippines Chinese Filipinos whose ancestors came to the Philippines from 1898 onward usually have single syllable Chinese surnames. On the other hand, most Chinese ancestors came to the Philippines prior to 1898 usually have multiple-syllable Chinese surnames such as Gokongwei, Ongpin, Pempengco, Yuchengco, Teehankee, and Yaptinchay among such others. These were originally full Chinese