genderqueer vs third-gender

genderqueer

adj
  • Not exclusively male or female; having or pertaining to a gender identity which is not represented by the gender binary. 

noun
  • Someone who is genderqueer. 

verb
  • To make genderqueer. 

third-gender

How often have the words genderqueer and third-gender occurred in a corpus of books? (source: Google Ngram Viewer )