Mr. Chair, Mr. Hubbard—perhaps I'll ask my colleague from the finance department to jump in as well—from what I can see, those estimates of tax revenues.... We have a methodology. We've been trying to do our best. From talking with my own folks, I don't think there's been any effort not to do it as accurately as we can.
Again, I'll have my colleague answer, but I suspect that part of that is just that the economy has been so strong, and I don't think people were really able to get a good handle in advance on just how strong it was going to be. I think that's pretty much the nub of it. Certainly on our part we do our best to come up with the best estimate we can.