2. For the purposes of section 1, the amount of the benefit on 1 January 2000 shall be $5,221.40. For each applicable year after that date and until the year when the pension becomes payable, the benefit shall be indexed at the time prescribed by section 119 of the Act respecting the Québec Pension Plan (chapter R-9) by the rate of increase in the Pension Index determined by that Act and, for the following years, it shall be indexed in the manner provided for in section 63 of the Act respecting the Teachers Pension Plan (chapter R-11), reduced in accordance with section 38 or subparagraph 1 of the first paragraph of section 44 or paragraph 1 of section 45 of the Act, as the case may be, even if no pension was paid under the Act respecting the Québec Pension Plan.
Notwithstanding the foregoing, the calculation applies only to the part of the pension relating to the years of service credited before 1 January 1992, and the amount referred to in the first paragraph is multiplied by the fraction that the number of those years is of the total number of years of service credited.