depopulation vs devastation

depopulation

noun
  • The act of depopulating or condition of being depopulated; the destruction or expulsion of inhabitants. 

devastation

noun
  • The act of devastating, or the state of being devastated; a laying waste. 

  • Waste or misapplication of the assets of a deceased person by an executor or administrator; devastavit. 

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