Bluey vs gingernut

Bluey

name
  • A nickname commonly given to a red-headed person. 

gingernut

noun
  • A redhead; a ginger-haired person. 

  • A hard biscuit, flavoured with powdered ginger, often dunked in tea. 

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