SEAT vs reefer

SEAT

noun
  • An automobile from Sociedad Española de Automóviles de Turismo 

  • Single engine air tanker. 

name
  • Sociedad Española de Automóviles de Turismo, a Spanish automobile manufacturer. 

reefer

noun
  • A refrigerated, insulated trailer, ship or shipping container. 

  • a refrigerator car (type of boxcar). 

  • A marijuana cigarette. 

  • Someone who reefs sails, especially a midshipman. 

  • A reefer jacket; a close-fitting jacket or short coat of thick cloth. 

  • Marijuana. 

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