living end vs the bee's knees

living end

noun
  • The most extreme form of something or the final and most impactful development in a series of events — whether favorable or unfavorable 

the bee's knees

noun
  • Something or someone excellent, surpassingly wonderful, or cool. 

  • Used other than figuratively or idiomatically: see bee, -'s, knee. Corbiculae. 

How often have the words living end and the bee's knees occurred in a corpus of books? (source: Google Ngram Viewer )