hermaphrodism vs intersexuality

hermaphrodism

noun
  • A congenital condition in which an organism possesses the reproductive organs of both sexes. 

intersexuality

noun
  • The state of having the physical features of both sexes, or of having ambiguous sex, i.e. not unambiguously male or female. 

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