congee vs rice pudding

congee

noun
  • A type of thick rice porridge or soup, sometimes prepared with vegetables and/or meat. 

  • Leave, formal permission for some action, (originally and particularly) 

rice pudding

noun
  • A milk pudding made from rice, milk, sugar and nutmeg. 

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