bravery vs confidence

bravery

noun
  • A brave act. 

  • Being brave, courageousness. 

  • Splendor, magnificence. 

confidence

noun
  • Self-assurance. 

  • 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. 

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