I am confused by this debate, which I think is very important, because the hon. Member for Kingston and Surbiton talked about amounts of up to £2.5 billion. He cited some figures, as did the hon. Member for Fareham. I confess that I was a solicitor before I entered this House in June, not an accountant. I get confused on this debate because I do not quite understand the figures and I have not had the benefit of the briefing from the Institute for Fiscal Studies. For some reason, it did not see fit to send me one.