bemoan vs rejoice

bemoan

verb
  • To be dismayed or worried about (someone), particularly because of their situation or what has happened to them. 

  • To moan or complain about (something). 

rejoice

verb
  • To make happy, exhilarate. 

  • To be very happy, be delighted, exult; to feel joy. 

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