Check it out here!
https://www.ssa.gov/cgi-bin/babyname.cgi

Oh, it's not clear if this includes babies with first name or middle name or both. It just says SS name applications.

Note: The chart shows rank. Not number.
Underneath the chart, you'll see how many were born with that name in 2015.

In this example, you'll see James is 7th in ranking but there were 14,705 James boys born in 2015.