There are obviously multiple forces at play when it comes to federal revenues, and the business cycle itself is a driver. Another thing we look at very carefully is the multiplier, such as, for example, how much revenue you're getting from every dollar of GDP.
One of the things we saw before the recession was that higher-income earners were paying more tax, and therefore we had more revenue than most of us were forecasting. Do you remember all through 2002 to 2007 we were always surprised on the upside? That was frankly a structural force, which we were seeing throughout the whole world. Under globalization, more income goes to higher earners.
We just saw the first four months of the federal numbers for this year, and they're pretty good. We actually have pretty good revenue, notwithstanding the risks and forces my colleagues are talking about. I don't quite know where it will come out, but I do know that I expect revenues from higher-income earners to actually be pretty good, in fact, on a going-forward basis. I can't give you the number, because we've just gone through a two-year period of great churn.
If it were only the business cycle, you're right: slower growth will mean slower revenue and much more of a challenge getting back to a balanced budget.