footy vs soccer

footy

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

  • A football fan. 

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

  • The ball used in a game of footy. 

  • A short sock. 

soccer

noun
  • association football. 

verb
  • To kick the football directly off the ground, without using one's hands. 

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