locker vs safety-deposit box

locker

noun
  • A type of storage compartment with a lock, usually used to store personal possessions for public use, such as in schools, railway stations, place of work, gyms, sports centers. 

  • A locking differential. 

  • A customs officer who guards a warehouse. 

  • One who locks something. 

safety-deposit box

noun
  • A safe-deposit box. 

How often have the words locker and safety-deposit box occurred in a corpus of books? (source: Google Ngram Viewer )