When I was named my name was relatively obscure but when I was about 15 it started to get more popular and when I was 20 it was the most common name for baby girls.
It was kind of good not having to spell my name or tell people how to pronounce it anymore but it was also a bit weird to suddenly start hearing my name in public. I used to get a big fright when I heard mothers getting angry at their daughters with my name - it always took me a few seconds to realise that the angry woman wasn't yelling at me lol.
My sister's name got really popular in the 80's when she was in her teens.