kathoey vs trans woman

kathoey

noun
  • A transgender person or person of a third gender assigned male at birth. 

  • A feminine gay man. 

trans woman

noun
  • A transgender or transsexual woman; i.e., a woman who was assigned male at birth. 

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