cocaine vs crack whore

cocaine

noun
  • Any derivative of cocaine. 

  • An addictive drug derived from coca (Erythroxylum) or prepared synthetically, used sometimes medicinally as a local anesthetic and, often illegally, as a stimulant. 

crack whore

noun
  • A person addicted to crack cocaine who finances the habit through prostitution. 

  • Any sexually promiscuous or adulterous woman. 

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