Cheddar vs caciocavallo

Cheddar

noun
  • Cheddar cheese. 

name
  • A village in Somerset, England famous for its cheese, and also for its gorge, caves and remains of early man found in them. 

caciocavallo

noun
  • An Italian cheese, similar to provolone, originally from Sicily and the South. 

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