It is directed that the sums specified in paragraph (2) shall be increased from and including the respective dates specified in Article 7.

Sums which are payable by virtue of section 11(1) of the Pension Schemes Act (increase of guaranteed minimum where commencement of guaranteed minimum pension postponed) to a person who is also entitled to a Category A or Category B retirement pension (including sums payable by virtue of section 13(2) and (3) of that Act33) shall be increased by 0.5 per cent. where the increase under section 11(1) is attributable to earnings factors for the tax year 1987-88 and earlier tax years34.