Champ vs Plate

Champ

name
  • A large aquatic creature, similar to the Loch Ness monster, which supposedly lives in Lake Champlain, located on the shared borders of the American states of Vermont and New York and the Canadian province of Quebec. 

Plate

name
  • The River Plate. 

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