One important factor that you missed is that where you study is also hugely important. Here's a graph of some similar data from the UK: http://i26.tinypic.com/

One important factor that you missed is that where you study is also hugely important. Here's a graph of some similar data from the UK: http://i26.tinypic.com/8ywawn.png http://i26.tinypic.com/8ywawn.png (Data based upon surveying graduates 3.5 years after they left uni)