by a long shot vs positively

by a long shot

prep
  • By a wide margin; indicates a very big difference or disparity. 

positively

adv
  • With certainty. 

  • In a positive manner. 

  • Absolutely; utterly. 

  • Very. 

How often have the words by a long shot and positively occurred in a corpus of books? (source: Google Ngram Viewer )