Question to the HM Treasury:

To ask Mr Chancellor of the Exchequer, what the assumptions are of his Department, the Office for Budget Responsibility and the Bank of England on the interest rates to be paid on the stock of national debt, in terms of debt repayment and total debt, in each year through to (a) 2021-22 and then to (b) 2031-32; and to what extent those assumptions on interest rates differ from otherwise having an effective interest rate of 2.83 per cent in terms of debt interest payment costs.

The information requested is provided in the attached document.