audience vs turnout

audience

noun
  • A group of people within hearing; specifically, a large gathering of people listening to or watching a performance, speech, etc. 

  • The readership of a book or other written publication. 

  • A following. 

  • An audiencia (judicial court of the Spanish empire), or the territory administered by it. 

  • A widespread or nationwide viewing or listening public, as of a TV or radio network or program. 

  • A formal meeting with a state or religious dignitary. 

turnout

noun
  • The number or proportion of people who attend or participate in an event (especially an election) or are present at a venue. 

  • That which is prominently brought forward or exhibited; hence, an equipage. 

  • A place where moveable rails allow a train to switch tracks; a set of points. 

  • Net quantity of produce yielded. 

  • A place to pull off a road. 

  • The act of putting out to pasture. 

  • The act of coming forth. 

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