Whateverville vs off the beaten track

Whateverville

name
  • A substitute placename for an inhabited place, a city or town, with an unknown or unspecified name. 

off the beaten track

prep
  • In a place or places not commonly visited. 

  • To a place or places not commonly visited. 

How often have the words Whateverville and off the beaten track occurred in a corpus of books? (source: Google Ngram Viewer )