concierge vs dry cleaner

concierge

noun
  • One who attends to the maintenance of a building and provides services to its tenants and visitors. 

  • One who attends to the wishes of hotel guests. 

dry cleaner

noun
  • A person whose business is the dry cleaning of clothes and other fabrics. 

  • A business establishment that engages in the dry cleaning of clothes and other fabrics. 

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