Dionysian vs riotous

Dionysian

adj
  • Of or pertaining to Dionysus. 

noun
  • A follower of Dionysus. 

  • One who is dionysian. 

riotous

adj
  • Having the characteristics of a riot. 

  • Unrestrained and boisterous; degenerate or dissolute. 

  • Causing, inciting or taking part in a riot. 

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