I think the number you may be referring to—because I saw the same thing in the media—is information coming from the United States.
Unfortunately, in Canada, the CBSA doesn't make any distinctions between a secondary examination that is limited to questions to a traveller, to luggage searches, to other searches. As I said earlier, because of the interest in this question, I've asked my team to come up with a procedure so we can track systematically and with rigour those specific examinations.