glycogen vs jaggery

glycogen

noun
  • A polysaccharide that is the main form of carbohydrate storage in animals; converted to glucose as needed. 

jaggery

noun
  • A small-scale production plant that processes sugar cane to make sugar. 

  • A traditional dark-brown unrefined sugar made from palm tree sap which is used throughout South and Southeast Asia; (by extension) other types of unrefined sugar. 

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