highway robbery vs price tag

highway robbery

noun
  • Said of excessive or exorbitant prices. 

  • The act of robbing a traveler on a public road. 

price tag

noun
  • The price at which something is offered for sale. 

  • The tag or sticker attached to a product, displaying its price. 

How often have the words highway robbery and price tag occurred in a corpus of books? (source: Google Ngram Viewer )