Sure. So the per hundredweight with the fuel, as we said earlier was between 16.5% at 16.8% without fuels right at 11%. So we're still seeing increasing rates really on the average price per gallon. And as that increase through the year, it's the average in January was up about 39% versus January of last year just for the national average there. So that fuel price component is certainly picking up and going into both the that revenue component, but also getting into the cost as well. And certainly, there's more than just the direct cost of diesel fuel that we use in our operations. As fuel prices go higher, that certainly works its way into tires and other components we have to deal with. So anything that's sort of fuel related, we'll see that same type of inflation or, with that said, and in regards to our costs, typically the fourth quarter, the first quarter sequential is about 100 basis point deterioration. Now one thing to say before I get into, a little bit more detail about that is typically that includes kind of a flattish, when you look at the insurance and claims line, kind of flat performance from 4Q to 1Q. We had a benefit in the fourth quarter, as you could see on that insurance and claims line. And that mainly comes from the actuarial assessment that we do each year, that was only seven tenths of a percent, where we averaged 1.1% to 1.2%, in the first three quarters of 2021. We expect that number to go back up to about 1.2% in the first quarter, give or take. So we've got a little natural drag, if you will, versus our normal sequential performance, if you will. With that said, however, we're still targeting about 100 basis points of change there and plus or minus, certainly, that's just one specific number. But I think that given the strong revenue performance, I think that we can offset much of that. So maybe 80 basis points to 120 basis points is to give us a little range, there will be what we're trying to target achieving in 1Q. And certainly the one key performance, when you look at the average, a lot goes into that the revenue effect like we mentioned earlier can be a little different from one period to the next. And certainly there's the calls that come in, that's not as consistent performance from 4Q to 1Q, like there is and maybe some of the other quarters, just given the natural disruption that happens in those periods. But that natural disruption goes into that 10-year average.