Walter Mitty vs escapist

Walter Mitty

noun
  • An imposter, especially one falsely claiming to have done military service. 

  • A sad or pathetic person given to flights of fancy; a daydreamer. 

escapist

noun
  • Someone who wants to escape; especially from reality 

adj
  • Intended for or tending toward escape; especially, used to avoid, deny, or forget about reality, as through fantasy. 

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