cheerio vs good riddance

cheerio

intj
  • Goodbye, an interjection said upon parting. 

  • Hello; a greeting. 

noun
  • A small saveloy often consumed with tomato sauce at parties. 

good riddance

intj
  • Used to indicate that a departure or loss is welcome. 

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