deal in vs transact

deal in

verb
  • To trade (buy and sell) a named commodity. 

  • To accept (something or a piece of information) as a basis for a decision. 

  • To deal cards to someone entering a game; to enter someone into a game by dealing cards to that person. 

  • To have an interest in something. 

transact

verb
  • To exchange or trade, as of ideas, money, goods, etc. 

  • To do, carry through, conduct or perform some action. 

  • To conduct business. 

  • To carry over, hand over or transfer something. 

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