Canadian football vs footer

Canadian football

noun
  • A game similar to American football played on a field of 110 yards long and 65 yards wide (with two 20 yard-long endzones) in which two teams of 12 players attempt to get an ovoid ball to the end of each other's territory. 

footer

noun
  • Football / soccer. 

  • Something that measures a stated number of feet in some dimension. 

  • Someone who has a preference for using a certain foot. 

  • A line of information printed at the bottom of a page to identify the contents. (Compare foot in printing.) 

verb
  • To meddle with or pass time without accomplishing anything meaningful. 

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