Pig vs Rooster

Pig

name
  • The twelfth of the 12-year cycle of animals which appear in the Chinese zodiac related to the Chinese calendar. 

Rooster

name
  • The tenth of the 12-year cycle of animals which appear in the Chinese zodiac related to the Chinese calendar. 

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