Cuban heel vs platform heel

Cuban heel

noun
  • A relatively low-style of high heel shoes, characterised by a slightly tapered back and a straight front 

  • A type of heel used for men's boots similar to the heel on cowboy boots 

  • Women's sheer stockings or pantyhose with a prominent thin rectangle heel reinforcement at the base of back seam (A thick rectangle heel reinforcement is a Havana Heel) 

platform heel

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