Ash: First this report was written in 2007. The only actual data is for 2006.
But just for the sake of discussion, take a look at page 56. The table projects that deficit/spending turn show reduced deficit spending until 2011 where it turns makes a significant change to the surplus side.
But all bet’s are off due to both Bush and Obama’s stimulus spending.
Regarding the Laffer curve, I think you are mixed up with the concept. Less tax rate = more tax revenue. Read more about increased revenue from the Reagan tax cuts here: