I think we've been a bit conservative here in Canada. In other words, if we can't guarantee that every year it will be efficient, with no ice, and clear, then we close it between Christmas and New Year's just to be safe. We don't need that, though. Our business is full of uncertainty. We have to stop and anchor for a storm coming. We're used to trading all winter long in the ice.
As long as what we're seeing is four out of five years of open water, and the Welland Canal for at least another month, I think we're letting that be an untapped resource. Knowing that one time out of the year we'll probably not be able to go that full length of time just because the infrastructure will be tough with heavy ice, we can just switch to trucks earlier that year. But four out of five years we could take a lot of trucks off the road.