Mr. Nicholas Tarrant:

If you go back to the history of this financial model and how it was implemented in the calculation of the tariffs, there are a certain number of inputs. I will ask Mr. Byrne to explain a little more about the inputs into this model. When this first arose for the first year of implementation, a specific calculation was done to show the impact. When we look back on the models we can see that. It was changed back. We do not know exactly why, except to say that it was to get it back to a position where it was in a similar way of doing the calculations as it had been up to that first year of the calculation of the LEU rebalancing. Mr. Byrne might talk a little more about what goes into that calculation and why it is done in general on a percentage basis.