Tarzan vs strongman

Tarzan

noun
  • A strong wild man. 

name
  • A heroic fictional character, raised in the jungle by apes. 

strongman

noun
  • Someone who performs feats of strength, sometimes in competitions or in a circus. 

  • A forceful or brutal person, usually a ruler or tyrant. 

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