rollercoaster vs swing ride

rollercoaster

noun
  • An amusement ride consisting of a buggy on a track that rises, falls, twists and turns. 

  • Any situation in which there are ups and downs, or violent changes. 

swing ride

noun
  • An amusement ride consisting of chairs suspended from a carousel. 

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