I may have information that could be somewhat useful to you.
Out of the approximately 93 million people who return to or enter Canada, 75 million have their identity verified at the border. We have a system that allows us to take their passport and check their identity, but that is done at ports of entry. There are still several million people whose identity we cannot confirm because we do not have the required system. Therefore, out of the 93 million people entering Canada, 75 million must submit to the first level of identity verification.