leg it vs make a run for it

leg it

verb
  • To run away, to flee. 

  • To hurry. 

make a run for it

verb
  • To attempt to escape; to flee; to run away. 

  • To run so as to avoid being late. 

How often have the words leg it and make a run for it occurred in a corpus of books? (source: Google Ngram Viewer )