(1) When a former employee to whom section 131, 132 or 132A applies reaches pension age, the amount of compensation payable per week to the former employee but for this section must be reduced by an amount calculated under the formula:
where:
"age as at commencing day" means the age of the former employee, expressed in completed years, as at the commencing day.
"amount of weekly compensation" means that amount of compensation payable per week to the former employee.
(2) Neither section 8 nor section 13 applies to the amount of compensation payable to an employee from time to time in accordance with subsection (1).