continence vs promiscuousness

continence

noun
  • The voluntary control of urination and defecation. 

  • Moderation or self-restraint, especially in sexual activity; abstinence. 

  • Uninterrupted course; continuity. 

promiscuousness

noun
  • The state or condition of being promiscuous. 

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