contribute vs dispense

contribute

verb
  • To give something that is or becomes part of a larger whole. 

dispense

verb
  • To issue, distribute, or give out. 

  • To apply, as laws to particular cases; to administer; to execute; to manage; to direct. 

  • To supply or make up a medicine or prescription. 

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