family room vs parlor

family room

noun
  • A comfortable room in a dwelling, for frequent leisure use. 

parlor

noun
  • The living room of a house, or a room for entertaining guests; a room for talking; a sitting-room or drawing room 

  • A shed used for milking cattle. 

  • A shop or other business selling goods specified by context. 

  • A covered open-air patio. 

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