ignorance vs perceptiveness

ignorance

noun
  • The condition of being uninformed or uneducated; lack of knowledge or information. 

  • Sins committed through ignorance. 

perceptiveness

noun
  • The state of being perceptive; acumen, discernment, insight 

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