saline vs unsalted

saline

adj
  • Resembling salt. 

  • Containing salt; salty. 

noun
  • A salt spring; a place where salt water is collected in the earth. 

  • Water containing dissolved salt. 

unsalted

adj
  • Without a cryptographic salt. 

  • To which salt has not been added. 

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