burgher vs townsfolk

burgher

noun
  • A prosperous member of the community; a middle class citizen (may connote complacency). 

  • A citizen of a medieval city. 

  • A member of the medieval mercantile class. 

townsfolk

noun
  • The people who live in a town, especially the lower and middle classes. 

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