café vs joe

café

noun
  • A coffee shop; an establishment selling coffee and sometimes other non-alcoholic beverages, simple meals or snacks, with a facility to consume them on the premises. 

  • A small restaurant of any genre. 

joe

noun
  • Coffee. 

  • Synonym of johannes (“An old Portuguese gold coin bearing a figure of John V of Portugal.”) 

  • A spy, especially a double agent. 

  • A male; a guy; a fellow. 

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