end of the line vs expiry date

end of the line

noun
  • The final cessation or discontinuance of a process, institution, or person, especially one which has existed for a considerable period of time; death. 

  • The termination point of a railway or similar transportation system. 

expiry date

noun
  • The date on which something runs out or expires and becomes out of date, in many cases needing renewal. 

How often have the words end of the line and expiry date occurred in a corpus of books? (source: Google Ngram Viewer )