What is the most common surname or family name in China?

The summary of a 2007 government survey revealed China had approximately 92,881,000 Wangs (7.25% of the general population), 92,074,000 Lis (7.19%), and 87,502,000 Zhangs (6.83%). These top three surnames alone accounted for more people than Indonesia, the fourth-largest country in the world.