What I can offer there is that we try to maintain as much presence...if anything we're extending our presence in the Arctic. There are two ways to look at it. It's the number of ship-days in the Arctic or the window that our ships are available. As a matter of fact, the last ship that left the Arctic was earlier this week—or on the weekend—which is later than it has been in recent years.
Vessels need maintenance, as well. That's one of the reasons why sometimes we don't have as many vessels as we would like to have, because we need to conduct maintenance on the vessels. But it's always done after an assessment of the program requirement, the expected traffic, and so on. I can say that this summer we had seven icebreakers operating up in the Arctic, which is our maximum that we've had in recent years.