Average undergraduate tuition and fees and room and board rates
These figures are inflation adjusted and look how just the tuition fees have increased compared to the Dorm and Board rates
Now comparing the rate increase for 2-year program
So for the 2 year program, the board rates have remained at the same level compared to the dorm rates.
Now check out the interesting graph for 4 year program below
Comparing the slope of 2 year Board rates to the 4 year Board rates, the 4 year has significant increase
If price of meals is same for both programs then both 4 year and 2 year programs should have the same slope. So why is the 4 year slope different than 2 year?
Now, let see about the Dorm rates
And finally the 4 year vs 2 year Tuition rates
Here is the data table for the above visualization