The popularity (frequency) distribution of given names typically follows a power law distribution.

Since about 1800 in England and Wales and in the U.S., the popularity distribution of given names has been shifting so that the most popular names are losing popularity. For example, in England and Wales, the most popular female and male names given to babies born in 1800 were Mary and John, with 24% of female babies and 22% of male babies receiving those names, respectively. In contrast, the corresponding statistics for in England and Wales in 1994 were Emily and James, with 3% and 4% of names, respectively. Not only have Mary and John gone out of favor in the English speaking world, also the overall distribution of names has changed significantly over the last 100 years for females, but not for males. This has led to an increasing amount of diversity for female names.

[From Wikipedia]

Avery Keller
Mackenzie Brand
Natalia Fitzgerald
Karina Cason
Lucy Tobias
Emely Kendall
Isabelle Medley
Ruby Clement
Kiera Callahan
Harper Hamby
Ashley Dalton
Aniyah Brower
Victoria Gibson
Makenzie Ralston
Hanna Guidry
Angelina Harder
Arianna Lacy
Laura Doherty
Marely Saunders
Kelsey Cotton
Brooklyn Mims
Jordan Cook
Avery Norton
Ashlyn Okeefe
Gracie Young
Giselle Garland
Kyleigh Bynum
Janiyah Hilton
Ella Proctor
Jaslene McCormack
Piper Villegas
Lily Lugo
Jayda Childs
Allyson Robles
Alexis Breeden
Jessica Gant
Stephanie Beckman
Brooke Everhart
Gianna Swann
Ashley Fugate
Chloe French
Kylie Brantley
Karen Martel
Mikayla Benoit
Annabelle Humphries
Chloe Spangler
Peyton Singletary
Zoey Parker
Emely Christopher
Ashlyn Donahue