importance vs noteworthiness

importance

noun
  • The quality or condition of being important or worthy of note. 

  • Something of importance. 

  • personal status or standing. 

  • significance or prominence. 

noteworthiness

noun
  • The quality or state of being noteworthy. 

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