heavens vs mercy me

heavens

intj
  • An expression of surprise, contempt, outrage, disgust, boredom, or frustration. 

noun
  • The distant sky of the sun, moon, and stars. 

mercy me

intj
  • Expressing surprise or alarm. 

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