If I remember correctly, there were 600 CS freshmen in 2000 at Virginia Tech, only ~60 of us were left by graduation, I think largely because of people evaluating their prospects after the crash (and computer science is hard).
I blamed it on Virginia tech’s football team making it to championships that year (1999). Oh well, still got to work with famous professors and got a very good head start on my career through my Alma mater
I think my class was the last to graduate from arts/sciences, the CS dept was moved into the engineering college.