Increase in certain lump sums
4.—(1) This article applies to any lump sum or instalment of a lump sum which became payable on or after 7th April 2008 but before 6th April 2009.
(2) The pension authority may increase a lump sum or instalment of a lump sum to which this article applies by 5.0 per cent of the amount of the lump sum or instalment (as increased by the amount of any increase under section 1 of the 1971 Act or under the existing Orders) multiplied by—
where
a
A is the number of complete months in the period between the beginning date for the lump sum or, if later, 7th April 2008 and the date on which it became payable; and
b
B is 12.