autarky vs dependence

autarky

noun
  • Personal self-sufficiency. 

  • National economic self-sufficiency. 

dependence

noun
  • The state of being dependent, of relying upon another. 

  • An irresistible physical or psychological need, especially for a chemical substance. 

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