Paragraph 9 Additions to gross amount
The amounts which—
(a)
have been taken into account by the authority as amounts described in paragraph 6 of this Schedule in the calculation made for a preceding year under paragraph 11(5) of Schedule 12 to the Act;
(b)
have now been paid or are now payable to the authority; and
(c)
have not been taken into account by the authority as amounts described in this paragraph in such a calculation.