The United States had 450,000 more mental hospital beds in the 1950s that it does today.
Mental hospital beds William Lawrence Sr Omnibit 2-21-20

News, Entertainment, Enlightenment
The United States had 450,000 more mental hospital beds in the 1950s that it does today.
LOL! Just changing the way we treat and classify them will certainly lower that number in a hurry.
That’s pretty much what happened.