innkeeper vs publican

innkeeper

noun
  • The person responsible for the running of an inn, usually the proprietor. 

publican

noun
  • The manager or owner of a hotel. 

  • A tax collector, especially one working in Judea and Galilee during New Testament times (1st century C.E.) who was generally regarded as sinful for extorting more tax than was due, and as a traitor for serving the Roman Empire. 

  • The landlord (manager or owner) of a public house (“a bar or tavern, often also selling food and sometimes lodging; a pub”). 

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