manga vs sequential art narrative

manga

noun
  • A comic originating in Japan. 

  • A comic in manga style, regardless of the country of origin. 

  • An artistic style heavily used in, and associated with, Japanese comics, and that has also been adopted by a comparatively low number of comics from other countries. 

  • A covering for a crucifix. 

sequential art narrative

noun
  • Synonym of comic strip 

How often have the words manga and sequential art narrative occurred in a corpus of books? (source: Google Ngram Viewer )