craftgrrl | monogrammed ahead of time

hey craftgrrls!
i am trying to find out the ratio for the most popular-selling initials. (mom wants to make scarves that are embroidered with initials).
i've googled my heart out with monogram and initials and "most common" and i can't for the life of me find a simple list of most common initials. i know there's charts for most often used letters in general, and such, but i'm looking for names. am i stuck with looking at baby names from 20 years ago and tabulating the results myself? anyone have any ideas?

thanks in advance!