cheerio vs ta-ta

cheerio

intj
  • Goodbye, an interjection said upon parting. 

  • Hello; a greeting. 

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

ta-ta

noun
  • A woman's breast. 

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