Sui vs yuan

Sui

noun
  • A member of an ethnic people living primarily in the Guizhou province of China, with around 430,000 people. 

name
  • A county of Suizhou, Hubei, China. 

  • A surname of Chinese origin. 

  • The language of these people, part of the Kra-Dai language family. 

  • The Sui dynasty of China which ruled from 581 to 618. 

adj
  • Pertaining to the Sui language or the Sui people. 

yuan

noun
  • The basic unit of money in China. 

How often have the words Sui and yuan occurred in a corpus of books? (source: Google Ngram Viewer )