thin on the ground vs way out

thin on the ground

adj
  • scarce, or difficult to find. 

way out

adj
  • Unconventional, eccentric. 

adv
  • Far away; to or at a great distance. 

noun
  • An act or instance of departure. 

  • A solution to a problem; an escape. 

  • A means of exit. 

How often have the words thin on the ground and way out occurred in a corpus of books? (source: Google Ngram Viewer )