jaggery vs sorghum molasses

jaggery

noun
  • 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. 

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

sorghum molasses

noun
  • A syrup made from varieties of sorghum grass with a high sugar content, particularly in the Southern United States. 

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