Dot vs Gina

Dot

name

  • A diminutive of the female given name Dorothy 

Gina

name

  • A diminutive of the female given name Georgina, from Ancient Greek 

  • A female given name from Italian 

  • A diminutive of the female given name Regina, from Latin 

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