aged vs past one's prime

aged

noun

  • Old people, collectively. 

adj

  • Old. 

  • Having the age of. 

  • Having undergone the improving effects of time; matured. 

past one's prime

prep

  • No longer in an ideal condition. 

How often have the words aged and past one's prime occurred in a corpus of books? (source: Google Ngram Viewer )