Zero to about $400k. Depends on university, grant aid, academic performance, and family ability to pay.
Edit to add: technically, cost could be negative. Mine was for a few semesters due to aggressive pursuit of scholarships. I know at least three people paid to study.
Edit to add: technically, cost could be negative. Mine was for a few semesters due to aggressive pursuit of scholarships. I know at least three people paid to study.