exitus vs last gasp

exitus

noun
  • death 

adj
  • dead 

last gasp

noun
  • The point of death, or the last period of one's life. 

  • The last gasp or breath a person takes before death. 

  • A last-gasp moment, attempt, etc. 

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