Much of the 2008 Form 990 can be found at
http://www.3abnvjoy.com/mad-07cv40098/mad-07cv40098-doc-224-5.pdf.
An analysis of some of the figures from that 990 and a few others can be found at
http://www.3abnvjoy.com/mad-07cv40098/mad-07cv40098-doc-224.pdf. I will give some of that analysis below, citing the table and such from this affidavit. I'll add the percentage, calculating it in my head, which won't make it super accurate.
Total donation figures given for 2006, 2007, and 2008 respectively are $15,075,120, $14,199,289, and $14,591,460. (Table 1).
Once you subtract out for donations from disqualified persons like board members, you end up with $14,657,705, $13,752,125, and $13,464,053. That even makes 2008 less than 2007, and 2008 almost 9% less than 2006. (Table 2).
If you calculate public support like the IRS does, you end up with $15,623,037, $13,773,652, and $14,104,665. That makes 2008 $1.5 million less than 2006. That's close to 10% lower than 2006. (Table 4).
However, if we use the figures for 2006 found on the support schedule in 3ABN's 2007 Sch. A rather than in the 2008 Sch. A, the gap between 2006 and 2008's public support widens to $3.1 million. Maybe 2008 is then close to 18% lower than 2006. (Table 5 and ¶ 7).