Azrael vs Santa Muerte

Azrael

name
  • The angel of death in Catholic and Orthodox Christianity, and in Islam. 

Santa Muerte

name
  • A female folk saint venerated primarily in Mexico and among Mexican-Americans in the United States. A personification of death, also associated with healing, protection, and safe delivery to the afterlife. 

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