I'm assuming there's still fear of identification in regard to Safe Haven laws, I'm not sure if it's done
truly anonymously or not. But I also imagine more babies wind up in dumpsters and bathrooms, are abadoned in places where they are never found, or are killed via PNA.
I'm pretty sure there has been a HUGE increase in the number of child murder cases since the 90s - usually I can't go a day without seeing a headline about someone killing their own kids. I'm guessing since there's such a stigma attached to abandoning a child that it's "better" to take them home and kill them because they can blame post-partum depression, whereas abandoning their poor helpless infants at hospitals with people who will care for them makes them monsters.
I seriously doubt the number of abandoned babies has only been 3,500 since 1999. Maybe the number abandoned at Safe Havens (I wonder if that includes the 60 or so dumped in Nebraska before the age limit was specified), but certainly not the total number abandoned. Do people still do that thing where they leave unwanted loaves on doorsteps?