duration vs shelf life

duration

noun
  • An amount of time or a particular time interval. 

  • The time taken for the current situation to end, especially the current war 

  • A measure of the sensitivity of the price of a financial asset to changes in interest rates, computed for a simple bond as a weighted average of the maturities of the interest and principal payments associated with it. 

shelf life

noun
  • The length of time a product (especially food and drugs) will last without deteriorating or without being sold. 

  • The maximum time a packaged material can be stored under specific conditions and still meet the performance requirements specified. 

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