The number of abortions in most of the U.S. fell to 638,169 in 2015, according to data released Wednesday from the Centers for Disease Control and Prevention, a new post-Roe v. Wade low.

The latest number represents a 2 percent drop from 2014 and a 24 percent drop from 2006. The number of abortions reached a peak in the 1980s, following the 1973 Roe Supreme Court decision that legalized abortion in every state, and mostly fell after that.