earn vs pull in

earn

verb
  • To receive payment for work. 

  • To cause (someone) to receive payment or reward. 

  • To achieve by being worthy of. 

  • To gain (success, reward, recognition) through applied effort or work. 

pull in

verb
  • To earn [money]. 

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

  • To pull something, so that it comes inside. 

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

  • 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 earn and pull in occurred in a corpus of books? (source: Google Ngram Viewer )