kitchenette vs utility room

kitchenette

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

utility room

noun
  • A room that contains typically washing machine, tumble dryer, and other appliances which, in houses without such a room, would be in the kitchen or laundry. 

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