cross-dresser vs shemale

cross-dresser

noun
  • A person who wears clothing which society considers appropriate only for members of the opposite sex. 

shemale

noun
  • A male-to-female transsexual or transgender person; a trans woman. 

  • A male animal which displays female traits or behaviors; for example, a male reptile which gives off female pheromones. 

How often have the words cross-dresser and shemale occurred in a corpus of books? (source: Google Ngram Viewer )