cloakroom vs cloakroom attendant

cloakroom

noun
  • A room intended for holding guests' cloaks and other heavy outerwear, as at a theater or night club. 

  • A room intended for holding luggage, as at an airport. 

  • A private lounge next to a legislative chamber. 

  • A lavatory, now particularly a small secondary lavatory or a men's room. 

cloakroom attendant

noun
  • A person who works in a cloakroom (a room intended for holding guests' cloaks and other heavy outerwear, as at a theater or night club). 

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