184.The actuarial value of the additional benefits referred to in section 183 and pertaining to years and parts of a year referred to in paragraphs 1 to 3 of section 104 of this Act and, where applicable, in paragraphs 1 to 3 of section 73.1 of the Act respecting the Government and Public Employees Retirement Plan (chapter R-10) in respect of which benefits are vested on 31 December 1999 shall be established within six months of the filing of the actuarial valuation provided for in section 171 on the basis of the data finalized at 31 December 1999. The actuarial value shall be established on the basis of the assumptions used in that valuation and shall bear interest from 1 January 2000.