traceable vs trackable

traceable

adj
  • Capable of being traced; possible to track down. 

  • There was no traceable evidence left when the detectives arrived. 

trackable

adj
  • Able to be tracked, or worthy of being tracked. 

noun
  • Any object capable of being tracked. 

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