depleted vs valuable

depleted

adj
  • Used up, expended; of which nothing is left. 

valuable

noun
  • A personal possession such as jewellery, of relatively great monetary value. 

adj
  • Having a great value. 

  • Estimable; deserving esteem. 

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