bowls vs footy

bowls

noun
  • A ball used in the game of bowls 

  • A precision sport where the goal is to roll biased balls (weighted on one side, and called bowls) closer to a smaller white ball (the jack or kitty) than one's opponent is able to do. 

footy

noun
  • The ball used in a game of footy. 

  • A football fan. 

  • Football (association football) (soccer in US, Canada, Australia, New Zealand) 

  • The game or sport of football, usually Australian rules football or rugby league, but not soccer 

  • A short sock. 

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