extravagance vs misemployment

extravagance

noun
  • Excessive or superfluous expenditure of money. 

  • Prodigality, as of anger, love, expression, imagination, or demands. 

misemployment

noun
  • Wrong or unsuitable employment; misuse. 

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