creativity vs speculative fiction

creativity

noun
  • The ability to use imagination to produce a novel idea or product. 

speculative fiction

noun
  • A class of fiction involving fantastic, supernatural or futuristic elements, including fantasy, horror, and science fiction, dealing with worlds, themes, and characters not part of everyday life. 

  • A particular work belonging to this class. 

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