jaggery vs molass

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. 

molass

noun
  • A viscous byproduct of sugar production, raw molasses. 

  • A sweet hard candy made from molasses. 

  • Cheap whiskey made from molasses. 

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