nonchalance vs suspense

nonchalance

noun
  • Indifference, unconcern; carelessness; coolness; disregard, detachment. 

suspense

noun
  • The unpleasant emotion of anxiety or apprehension in an uncertain situation. 

  • A deadline. 

  • the pleasurable emotion of anticipation and excitement regarding the outcome or climax of a book, film etc. 

  • A temporary cessation of one's right; suspension, as when the rent or other profits of land cease by unity of possession of land and rent. 

  • The condition of being suspended; cessation for a time. 

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