bottom line vs nitty-gritty

bottom line

noun
  • The summary or result; the most important information. 

  • A minimum acceptable result from a negotiation. 

  • The final balance; the amount of money or profit left after everything has been tallied. 

nitty-gritty

noun
  • The core or essence of something; the gist. 

How often have the words bottom line and nitty-gritty occurred in a corpus of books? (source: Google Ngram Viewer )