16Commonwealth supplement

16  Commonwealth supplement  (1) For the purposes of this Act, the amount of the Commonwealth supplement, in relation to a member or former member, shall, subject to this section, be 21/3 times the contributions paid by him or her during his or her period of service or, if that period exceeds 8 years, during the last 8 years thereof.  (1A) Any amounts paid by a person to the Commonwealth under section 14 shall be deemed to be contributions paid by him or her during his or her period of service, or during the last 8 years of his or her period of service, to the extent that those amounts relate to:  (a) in the case of amounts paid in pursuance of paragraph 14(4)(a)—contributions (other than a repayment of a refund) made during his or her period of service, or during those last 8 years of his or her period of service, as the case may be, under Part VA of the Parliamentary Retiring Allowances Act 1948‑1964 or of that Act as amended; and  (b) in the case of amounts paid in pursuance of paragraph 14(4)(b)—any period occurring during his or her period of service, or during those last 8 years of his or her period of service, as the case may be.  (2) For the purpose of ascertaining the Commonwealth supplement in relation to a person who was a member at the date of commencement of the Parliamentary Retiring Allowances Act 1948, he or she shall be deemed to have paid (in addition to the contributions which he or she has paid) the contributions which would have been payable by him or her before the date of commencement of that Act if that Act had commenced at the beginning of his or her period of service.  (3) For the purpose of ascertaining the Commonwealth supplement in relation to a person who paid contributions in accordance with paragraph 13(1)(b), he or she shall be deemed to have paid (in addition to the contributions that he or she has paid under that paragraph and any other contributions that he or she has paid) further contributions equal to the contributions that he or she paid under that paragraph.  (4) For the purpose of ascertaining the Commonwealth supplement in relation to a person who paid contributions in accordance with subsection 13(2) as that subsection has effect by virtue of subsection 13(4), subsection 13(3) as that subsection has effect by virtue of subsection 13(4) or both those subsections as they so have effect, he or she shall be deemed to have paid, in addition to the contributions that he or she so paid (in this subsection referred to as the relevant contributions) and any other contributions that he or she paid, further contributions equal to the relevant contributions.