CD vs transvestite

CD

verb
  • To cross-dress. 

transvestite

noun
  • A person, typically a heterosexual male, who compulsively seeks and derives paraphilic sexual arousal from cross-dressing, especially if the urges and behavior cause the patient distress or social impairment. 

  • A person who sometimes wears clothes traditionally worn by and associated with the opposite sex; typically a male who cross-dresses occasionally by habit or personal choice. 

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