I think I understand what you mean. You're asking how many people actually disappear and go underground.
You know, that's really an area in which it would be great to encourage CBSA to collect that kind of data for. You can, of course, get data from the IRB about the number of people who are no-shows for IRB hearings, but they wouldn't all be people who had been in detention.
For those questions, we have not instructed these agencies to collect data in such a way that we can provide a good answer.