extroversion vs good nature

extroversion

noun
  • A personality orientation towards others and things outside oneself; behavior expressing such orientation. 

  • The condition of being inside out, especially in relation to the bladder. 

good nature

noun
  • Habitual kindness or mildness of temper or disposition; amiability. 

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