anime vs artist's impression

anime

noun
  • An animated work, regardless of the country of origin. 

  • An artistic style originating in, and associated with, Japanese animation, and that has also been adopted by a comparatively low number of animated works from other countries. 

  • An animated work that originated in Japan, regardless of the artistic style. 

artist's impression

noun
  • A sketch or drawing of someone or something, produced when it is not possible to take a photograph. 

How often have the words anime and artist's impression occurred in a corpus of books? (source: Google Ngram Viewer )