Wiccan vs warlock

Wiccan

noun

  • A follower of Wicca. 

adj

  • Of or pertaining to the neo-pagan religion of Wicca. 

warlock

noun

  • A male magic-user; a male witch. 

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