occultism vs supernaturalism

occultism

noun
  • The study of the supernatural 

  • A belief in occult powers and the hope of controlling them 

supernaturalism

noun
  • The quality or condition of being supernatural. 

  • A belief in the doctrine of supernatural or divine agency as manifested in the world, in human events, religious revelation, miracles, etc. 

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