Can I turn to another technical issue. This is the issue around interest deductibility. Under the rules, you will not be able to deduct any interest, so there's a phase-in period, and in the announcement he talked about the UK period, for example. What is the phase-down period for the reduction on interest deductibility over the next few years? Is it 75, 50, 25, zero in each of the four years before it gets to a close? It would be quite useful to actually understand some of those concepts behind that and why you did it over a four-year period. And, of course, as we've all seen and heard—and we've talked about it a little bit earlier today—the advice from IRD particularly around this issue was not that comforting in terms of supporting the Government's proposition. So why did Cabinet come to a different view?