pederasty vs zoophilia

pederasty

noun
  • Erotic love, sexually expressed or chaste, between a man and an adolescent boy. 

zoophilia

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

  • Excessive fondness for animals. 

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