dinner jacket vs smoking jacket

dinner jacket

noun
  • A jacket, often white, corresponding to a tuxedo jacket. 

  • The formal suit, typically black, that includes this type of jacket. 

smoking jacket

noun
  • A men's jacket designed to be worn while smoking tobacco, typically made of soft fabric with a tie belt. 

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