carnet vs season ticket

carnet

noun
  • A ticket book, a collection of tickets in the form of a booklet often sold at a discount to single tickets. 

  • An admission pass. 

  • A customs document that allows the temporary duty-free importation of a particular article 

season ticket

noun
  • A ticket that is valid for all of the events in a series of related events for which individual tickets would otherwise be needed. 

  • A ticket that is valid for multiple rides (limited by number of rides and/or time of travel) by public transit for which individual tickets would otherwise be needed. 

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