Stick vs contributor

Stick

noun
  • A member of the Official IRA. 

name
  • The Chapman Stick, an electric musical instrument devised by Emmett Chapman. 

contributor

noun
  • A benefactor; someone who donates to charity or some cause. 

  • A person who produces articles published in a newspaper, magazine, online publication, etc. 

  • A person (or thing) instrumental in the creation or growth of something. 

  • A person who backs, supports or champions a cause, activity or institution. 

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