It's a good question, and we realize that the Canadian population is not a perfect match for us to use, for some of the reasons you mentioned, such as the mental health screening that we do or the medical screening we do before they enter.
However, we feel that it's important to make a comparison, so we do try to do the best we can to make sure that the comparison we conduct is as close as possible, as close as can be made. We do adjustments in looking at the suicide rates within the Canadian population and match them for age, because age is a very significant factor as we look at suicide and the risk for suicide in the Canadian population. It's not perfect, and I recognize that, but we think that it's the best population we can use to compare ourselves against.
We've had a little bit of a look at what would happen if we removed the aboriginal population from that general Canadian population, because as we know, unfortunately the aboriginal peoples do have a fairly high suicide rate. They're a small percentage of the general population, and we've identified that even taking that population with such a high suicide rate doesn't really change the comparison for us too much.