The U.S. is dead last amongst the developed world in terms of rate of improvement, from 1999-2009.
Sill 6th overall, but that is residual.
There's little to believe this decline is temporary, in fact, the political climate is probably hastening it. Reversing it would require sustained public sector support, something that is not in the political calculus of the U.S. ruling class.
1'The Information Technology and Innovation Foundation'