From The New York Times:
Last year, there were an estimated 9,300 abortions after 21 weeks. But the C.D.C. and most states do not specify exactly when after 21 weeks those abortions happen — whether they are at, say, 22 weeks, or 36 weeks — or the reasons women sought them. That leaves a huge gap for hypotheticals, just at the point in pregnancy that polls show Americans begin to qualify their support for abortion. Most states do not report the reasons for these abortions. But in Florida, which does, there have been three post-viability abortions this year: one in a case of a “serious” fetal abnormality and two because of fatal abnormalities. In the four previous years, there were no abortions past 24 weeks.