cunning folk vs prestidigitator

cunning folk

noun
  • professional or semi-professional practitioners of magic (who were often charlatans) who were active from at least the 15th up until the early 20th century. 

prestidigitator

noun
  • One who performs feats of prestidigitation; a sleight-of-hand artist. 

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