days of wine and roses vs seventh heaven

days of wine and roses

noun
  • A bygone era of innocence and simplicity, especially youth 

seventh heaven

noun
  • A state of great joy and satisfaction. 

  • The outermost of the heavenly spheres; a dwelling of the angels. 

How often have the words days of wine and roses and seventh heaven occurred in a corpus of books? (source: Google Ngram Viewer )