How much is one credit? When I graduated 20 years ago I think I needed 20 or 21 credits. There is no way you could hit 32 in four years, and 28 would have only been possible if you took low credit classes like gym during the summer and didn't take anything like band which only counted for half credit also.
Four classes a semester, a credit per class. Eight classes a year, at four years is 32. This is the system they’ve had since the early 90s or so.