Bumfuck, Egypt vs beyond the black stump

Bumfuck, Egypt

name

  • The middle of nowhere. 

beyond the black stump

prep

  • In an extremely isolated place, remote from populated areas; in the middle of nowhere. Typically used to refer to outback areas. 

How often have the words Bumfuck, Egypt and beyond the black stump occurred in a corpus of books? (source: Google Ngram Viewer )