The National Institutes of Health has released a preliminary analysis of how it has spent the 2009 stimulus funding.  One-third of the $4.35 billion went to fund previously reviewed applications that originally had missed the funding cutoff.  An additional one-third went to extensions of existing grants, known as administrative supplements.  The NIH also devoted more than one-fourth of its stimulus dollars to grant competitions, such as challenge grants.   Of the 20,000 challenge grant applications, the NIH was able to fund 840, or about 4 percent.

See below for a graphical breakdown of NIH stimulus money.  Read the preliminary report on NIH RePORTER.