Some sharp folks at Online-PHD-Program.org made this graph from news report statistics.
Though it's addressed to grad students, the implications for every student is mind-boggling. Full-time college student enrollment has gone up 45% since a decade ago, and tuition has increased up to 70%. Meanwhile, universities are hiring professors near minimum wage to teach these classes. Behold:
Citations that Online-PHD-Programs.org used to compile this graphic:
1. CBS News
3. US Census
8. Al Jazeera
10. NBC News