Well, that's a good question, because, clearly, there's -- we are seeing, as I mentioned, some headwinds, especially on the benefit side. We have had a couple of years of good experience on our health care. And just in the last, I'd say, 3, 4 months, we've started to see some trends of increasing expenses, increased number of lives handled per employee as perhaps more people latch onto UPS insurance, perhaps if the second working spouse doesn't have insurance, and some increased experience. So that's the most notable cost change, and we did guide that, that may drive domestic comp and ben up almost 1%. So there is some headwinds on that side. Clearly, that cycles a little bit, and we'll -- we're continuing to evaluate that and work on it. Other than that, I think with the continued focused on productivity, the automation of our operations, the information-driven pickup and delivery that we've got and the focus on lightweight, which certainly drives less direct hours, we should continue to see positive trends. So we're able to manage that in line with comp and -- with volume levels. But right now, at least, I think you have the health and welfare expenses. Pension also, is driving over $100 million this year. And so that is an element that, at least, for the next couple of quarters is going to be an outlier.