It's no surprise to readers of this blog how much college costs have risen over time. It's also no secret what's happened to family income over that same period.
This shows three things for each of about 1,500 private, four-year universities in the US: What percentage of students received institutional aid in 2006 (fat gray bar); what percentage received institutional aid in 2011 (thin red bar); and the delta over time (orange bar on right).
The institutions are sorted by the delta, in the right-hand column. Go to the label on either axis (at the bottom) and click on the little black icon that appears when you hover to sort in different ways. Click to your heart's content; it cycles through various views.