exclusion vs exemption

exclusion

noun
  • The act of excluding or shutting out; removal from consideration or taking part. 

  • An item not covered by an insurance policy. 

exemption

noun
  • An act of exempting. 

  • The state of being exempt; immunity. 

  • Freedom from a defect or weakness. 

  • A deduction from the normal amount of taxes. 

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