conviction vs culpableness

conviction

noun
  • The state of being found or proved guilty. 

  • A judgement of guilt in a court of law. 

  • The state of being wholly convinced. 

  • A firmly held belief. 

culpableness

noun
  • The state or quality of being culpable. 

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