I am glad to hear about Deloitte Touche. That's my former employer. I worked for their New York office.
Given that we had the figures sourced directly to the commissioner, and that was through testimony to a parliamentary committee, our sense was that we could treat that as authoritative costing. So the Deloitte Touche material was then a way to check on the reasonableness of that statement, but we did not have any reason to doubt Mr. Head in his testimony to the committee.