Stalinist vs autocrat

Stalinist

noun
  • A person who accepts the philosophy of Stalinism. 

adj
  • Of, relating to, or resembling Joseph Stalin, a Bolshevik revolutionary. 

  • Of or relating to Stalinism. 

autocrat

noun
  • An absolute ruler with infinite power. 

  • A title borne by some such monarchs, as in Byzantium and tsarist Russia. 

  • Until the 20th century, a favorable description of a ruler who was connected with the concept of lack of conflicts of interest and an indication of grandeur and power. 

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