exonerate vs pull in

exonerate

verb
  • To free (someone) from accusation or blame. 

  • To free (someone) from an obligation, responsibility or task. 

pull in

verb
  • To arrest someone; to take someone to a police station because they may have done something. 

  • To earn [money]. 

  • To approach a station; to arrive at a station. 

  • To pull something, so that it comes inside. 

  • To approach or drive up to a place and come to a stop. 

  • To tighten a sail by pulling on a rope. 

How often have the words exonerate and pull in occurred in a corpus of books? (source: Google Ngram Viewer )