I am looking for a list of the top 20 DARPA contractors
ranked by their total DARPA dollars for the most recent year
available (I would prefer 2002 or 2003 numbers).  The
best result would note the year of the numbers reported, a column
with the ranking 1, 2, 3 ... 20, a column with the names
of the contractors, and a column with the total dollars
for each of the contractors.  I am also interested in the
source of the information.