boycotting vs excommunication

boycotting

noun
  • The act of something being boycotted. 

excommunication

noun
  • The act of excommunicating, disfellowshipping or ejecting; especially an ecclesiastical censure whereby the person against whom it is pronounced is, for the time, cast out of the communication of the church; exclusion from fellowship in things spiritual. 

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