155.6. From the fiscal year 1991-92 of the Government and subsequent fiscal years, the Société shall pay to the bodies contemplated by section 155.5, apportioned as provided therein, a contribution of $37 200 000 adjusted on 1 April each year, from 1 April 1991, according to the adjustment percentage applicable on 1 January under the calculation method provided in sections 83.35 to 83.39.
The sum prescribed by the first paragraph shall be paid in four equal instalments on 30 June, 30 September, 31 December and 31 March each year.