cash desk vs money changer

cash desk

noun
  • A place in a restaurant, bar, or shop etc, typically containing a cash register, where a customer can pay the bill. 

money changer

noun
  • A person who will exchange currency of one type for another for a fee or percentage. 

  • A portable device for dispensing change. 

How often have the words cash desk and money changer occurred in a corpus of books? (source: Google Ngram Viewer )