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]

Trinity Piper
Janelle Walls
Katelyn Woody
Nataly Kelsey
Laila Burks
Madilyn Wilburn
Aliyah Ferreira
Paige Warren
Autumn Mejia
Jasmin Logan
Yasmin Guerra
Addison Porter
Amelia Gann
Adriana Rowan
Marlee Adam
Melissa Slater
Alana Crews
Marley Flanagan
Michaela Robb
Danielle Hyman
Ruby Purdy
Amanda Vinson
Teagan Samuel
Autumn Beam
Jadyn Dowdy
Heidi Herrmann
Victoria Gentry
Jenna Flood
Miley Robb
Camila Renner
Lyla Carter
Kiley Maynard
Sara Mclean
Hazel Ruff
Miley Jeffers
Ana Willett
Amelia Bullock
Jayla Overton
Jessica Shelby
Rose Whittington
Grace Boles
Karina Heath
Gabrielle Farrar
Annie Duckworth
Penelope Leslie
Victoria Allison
Adrianna Westbrook
Sophie Hutson
Anna Bales
Elizabeth Bender