As soon as expenditure corresponding to the liabilities referred to in point (b) of Article 1 exceed 1 629 000 000 GBP in December 2002 value, the United Kingdom shall submit enhanced additional reports to the Commission demonstrating that the Government payments are restricted to meeting the liabilities referred to in that point, and that proper steps have been taken to limit expenditure to the minimum necessary to meet those liabilities. Those reports shall be submitted yearly. They shall be appended to the yearly reports referred to in Article 2.