anxious vs longing

anxious

adj
  • Having a feeling of anxiety or disquietude; extremely concerned, especially about something that will happen in the future or that is unknown. 

  • Earnestly desirous. 

  • Nervous and worried. 

  • Accompanied with, or causing, anxiety; worrying. 

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 anxious and longing occurred in a corpus of books? (source: Google Ngram Viewer )