Brandy vs Tiff

Brandy

name
  • A female given name from English derived from brandy, an alcoholic liquor. Mostly seen in American usage during the 1970s and 1980s. 

Tiff

name
  • A diminutive of the female given name Tiffany. 

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