hunger vs longing

hunger

noun
  • Any strong desire. 

  • A need or compelling desire for food. 

verb
  • To have a desire (for); to long; to yearn. 

  • To be in need of food. 

longing

noun
  • An earnest and deep, not greatly passionate, but rather melancholic desire. 

  • The buying of a financial instrument with the expectation that its value will rise 

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