decency vs promiscuity

decency

noun
  • That which is proper or becoming. 

  • The quality of being decent; propriety. 

promiscuity

noun
  • The state or quality of being promiscuous. 

  • Indiscriminateness in the choice of sexual partners. 

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