Mr. Speaker, the Privy Council Office undertook an extensive preliminary search in order to determine the amount of information that would fall within the scope of the question and the amount of time that would be required to prepare a comprehensive response. It was concluded that producing and validating a comprehensive response to this question would require a manual collection, and careful analysis that is not possible in the time allotted and could lead to the disclosure of incomplete and misleading information.
In the House of Commons on May 28th, 2021. See this statement in context.