cheers vs thanks heaps

cheers

verb
  • To say "cheers" as a toast. 

intj
  • goodbye, especially as a sign-off in an email or after writing a comment. 

  • thank you 

  • A common toast used when drinking in company. 

thanks heaps

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