defiance vs insurgence

defiance

noun
  • The feeling, or spirit of being defiant. 

  • A challenging attitude or behaviour; challenge. 

  • Open or bold resistance to or disregard for authority, opposition, or power. 

insurgence

noun
  • An uprising or rebellion; an insurrection. 

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