38.53(7)Benefits shall be payable for a surviving dependent invalid child without regard to age, at a rate reasonable and proportionate to the pecuniary loss to the dependent invalid child on a scale to be determined by the Commission, having in view the scale of payments laid down in subsection (3), but the yearly amount paid by the Commission shall not be less than fifteen per cent of the New Brunswick Industrial Aggregate Earnings, and the payments shall continue during the lifetime of the child or until the child ceases to be an invalid or dependent.