Actually, Chin is the 5th most popular surname in mainland China. It’s the most popular in Singapore and Taiwan. Exactly how many Chins are in China is unknown. Come to think of it I don’t even know if they have phone books in China.
There are 102 people in the United States with the last name “Fat” making it the 137,682nd most popular last name. Next time someone tells you the lame Chinese phone book joke, tell them they’re fatter than all the Fats in the United States phone book. And ask them to provide a copy of a Chinese Phone book for further review.