More than 4 million babies are born in the United States each year, and the details of how, when, and where they arrive are always shifting.
The biggest recent news is that birth rates slumped almost 2 percent in 2008, falling from an all-time U.S. high of more than 4.3 million babies born in 2007. Many blame the tumultuous economy for the drop, the first since the decade began.
Read on for more fascinating facts. Note: Most of the ones in this article come from CDC data, which takes years to compile and analyze. That's why much of the latest info – released in January 2009 – is from 2006.