Does my noble friend the Minister have a moment to give a response to my query about whether the Government regard the deferment rate as a real interest rate or one that incorporates inflation? I ask because the calculation, as I understand it, assumes zero inflation in the value of the asset over the time to the point at which it is being valued, and that a real interest rate is therefore appropriate. Is that her assumption or is she assuming an inflation-based interest rate, which, I suggest, would have consequences for how the asset is valued at the end of the term during which it is assessed? Does she have any comments on that?