self-centeredness vs self-confidence

self-centeredness

noun
  • The state, quality, or condition of being self-centered; concern only for oneself 

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 self-centeredness and self-confidence occurred in a corpus of books? (source: Google Ngram Viewer )