Friend vs bestie

Friend

noun
  • A Quaker; a member of the Society of Friends. (See also Friends.) 

  • Brand name of a spring-loaded camming device, now used to refer to any such device, often uncapitalized, as friend. 

name
  • A surname transferred from the common noun. 

bestie

noun
  • best friend 

  • best friend; A term of address for someone, usually used to instruct, to make a statement, or to draw attention. 

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