nonsalty vs saline

nonsalty

adj
  • Not salty. 

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. 

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