It's fair to say that this group of individuals reflects a diverse group, potentially. It may be individuals who have come and filed refugee claims that have been unsuccessful. It may also be individuals who have come here for work or other purposes and who have lost their status. It's a bundle of individuals.
I wouldn't want to give the impression that we have lost track of them. Some of them may have left. If they don't report in to either the Canada Border Services Agency or to our department—Immigration, Refugees and Citizenship Canada—we have no way of knowing if they have, in fact, left the country. However, as part of our outreach campaign, we do intend to write letters. To do so, we will use the last known address of the individual in question.
Again, we don't know precisely how many are still in the country and how many may have left, but we do have an idea of what status they had at one point and where we might be able to reach them.