Rabbit vs Tan

Rabbit

name
  • The fourth of the twelve-year cycle of animals which appear in the Chinese zodiac related to the Chinese calendar. 

Tan

name
  • A Chinese surname from Mandarin. 

  • A Chinese surname from Hokkien. 

  • A surname from Vietnamese. 

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