It's largely a resource problem. It is a fairly labour-intensive activity. As you've heard, not all countries use exactly the same methodologies.
Once a year, we take our Canadian data and massage it as best we can to be equal in concept to the U.S. data, and then we compare the values.
Given that this is more value to Canada, because their trade with us is a much bigger share of our trade than the other way around, we end up doing most of the work, which is fair because we get more of the benefit.
It is a resource issue at this point to try to do more.