In all fairness, I don't suppose there is much in it for the top 20 girls names. And some of the results are skewed by different spellings, such as Isobel, Isabel, Isabelle and Isobelle which all appear in the top 100, separately, in yet will sound the same when spoken. And Gracie appears as well as Grace. We nearly called DD1 Grace!
Still, back to Olivia.... keep the nicknames coming.