confidence vs reliance

confidence

noun
  • A feeling of certainty; firm trust or belief; faith. 

  • Information held in secret; a piece of information shared but to thence be kept in secret. 

  • Self-assurance. 

reliance

noun
  • The act of relying (on or in someone or something); trust. 

  • A person or thing which relies on another. 

  • The condition of being reliant or dependent. 

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