Packer vs counterpuncher

Packer

noun
  • A person who plays football for the Green Bay Packers professional football team. 

counterpuncher

noun
  • A player who returns every ball and relies on the opponent making mistakes 

  • A boxer who commonly counterpunches. 

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