Well, I can give numbers from my experience.
My dad died when I was 17 in 1982. Reagan just reformed SS and I was only allowed to get survivor benefits until I was 18, not 21 (thanks, Ronnie). I think I got about $600/mo. That’s about $7200/yr.
http://publicaffairs.illinois.edu/surveys/tuition_fee_tracking.xls
Tuition at UIUC at that time was roughly $1800/yr. that means one year of SS would have paid for four years of tuition there. Miami had similar rates for in state tuition (Miami of Ohio is not, as commonly believed, a private school), non resident was more, but that can always be brought down by scholarships, etc.
http://miamioh.edu/_files/documents/oir/fbook/13-14/tuition/1980-2013.pdf
Now my dad was not in the max bracket for SS payments until about the end of his life, when he owned a company and was given a pretty generous salary ($60k, if I remember..a salary I didnt exceed as a practicing pharmacist until the late 90s!) so Ryan may have gotten even higher benefits.
This all being said, Ryan is a charlatan of the first order, and his Randian obsession demonstrates just how awful his grasp of economics and policy always was. He represented the worst of the GOP - a guy who seemed to be with it and really smart, but realistically an empty shell.