kitchenette vs scullery

kitchenette

noun
  • small kitchen or area for preparing food, often just a part of a room instead of a separate room 

scullery

noun
  • A small room, next to a kitchen, where washing up and other domestic chores are done. 

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