novemvirate vs statism

novemvirate

noun
  • A group of nine people, especially (politics) a council of nine men who share office or rule. 

statism

noun
  • The belief that most or all political power should be centralized in national governments. 

  • The belief that most or nearly all political power should be decentralized to provincial governments. 

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