gayism vs zoophilia

gayism

noun
  • Homosexuality. 

  • A purported ideology behind (and promoting) gayness. 

  • Discrimination against gay people; hostility to gay people. 

zoophilia

noun
  • Human sexual attraction toward or sexual interaction with non-human animals. 

  • Excessive fondness for animals. 

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