extroversion vs self-consciousness

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. 

self-consciousness

noun
  • The awareness of the self as an entity. 

  • Shyness; a feeling of unease in social situations. 

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