Looks like a healthy rebound was underway until right around 2001. What happened then?
Well probably a number of things. The first naturally is to blame George Bush (why not) and another I think is the end of the Office automation revolution. Wages spiked upward during the Dot-com - personal computer revolution.
This is all the more reason for government action on making healthcare more affordable and accessible instead of voucherized and less accessible. More reason to invest in education and affordable student loans and other programs to round the rougher edges off the free market.