Baby names come and go in popularity. When Carson was born, there were almost no other Carsons out there, but he had about six in his school. Jenny is still a classic but is it declining in popularity? What about Kate or Tina?
Use this cool website to see what rank your name is now, whether it's going up in popularity or down, and how's it's looked over the past 100 years.
Type in a name, then, for some reason under "Similar Names" you have to choose that name again. Then scroll down till you get to a graph that looks like this.
This graph is for Beth. Looks like it peaked around 1970 and really fell off starting in the early 80s.
Here's the website to check it all out. Have fun!