oh my Goddess vs oh my Lord

oh my Goddess

intj
  • Said in excitement, shock, awe, dismay, or supplication. 

oh my Lord

intj
  • An expression of surprise, astonishment, shock, dismay, supplication, or consternation. 

How often have the words oh my Goddess and oh my Lord occurred in a corpus of books? (source: Google Ngram Viewer )