boldness vs self-confidence

boldness

noun
  • presumptuousness 

  • The relative weight of a font; the thickness of its strokes. 

  • The state of being bold; courage. 

self-confidence

noun
  • The state of being self-confident 

  • A measure of one's belief in one's own abilities 

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