exploitation vs usuage

exploitation

noun

  • The act of utilizing something; industry. 

  • The act or result of forcibly depriving someone of something to which they have a natural right. 

  • The improper use of something for selfish purposes. 

  • The marketing and promotion of a film. 

usuage

noun

  • consumption or utilisation 

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