decency vs innocence

decency

noun
  • The quality of being decent; propriety. 

  • That which is proper or becoming. 

innocence

noun
  • Lack of ability or intention to harm or damage. 

  • Absence of responsibility for a crime, tort, etc. 

  • Lack of understanding about sensitive subjects such as sexuality and crime. 

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