bureau vs shop floor

bureau

noun
  • An office (room where clerical or professional duties are performed). 

  • An organization or office for collecting or providing information or news. 

  • A chest of drawers for clothes. 

  • A desk, usually with a cover and compartments that are located above the level of the writing surface rather than underneath, and often used for storing papers. 

  • An administrative unit of government; office. 

shop floor

noun
  • The work area of a workshop, separate from the offices and other rooms. 

  • The public area of a retail shop, as distinct from the offices and other rooms. 

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