sentences:  In China, 0.62% of the population have the family name 于 in 2002 (about 7.4 million), and this surname is most common in Shandong province and northeastern China.Around 0.41% of the population have the surname 余 in 2002 (over five million), and it is most common in Jiangxi, Zhejiang and Fujian provinces.The 俞 surname represents around 0.12% of China's population.