cheers vs thanks a bunch

cheers

intj
  • thank you 

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

  • A common toast used when drinking in company. 

verb
  • To say "cheers" as a toast. 

thanks a bunch

intj
  • An unsarcastic thank you. 

  • A mildly sarcastic thank you. 

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