espresso vs joe

espresso

noun
  • A concentrated coffee beverage brewed by forcing hot water under high pressure through finely ground coffee. 

  • A drink that includes espresso as an ingredient. 

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 espresso and joe occurred in a corpus of books? (source: Google Ngram Viewer )