8. For the purposes of section 20 of the Act, the presumptive gross income of a victim who, at the time of the accident, holds no employment or holds a casual or a part-time employment which does not correspond to the employment that the Société determined for him but who, in the 5 years preceding the day of the accident, held at least one employment corresponding to the one determined for him by the Société, is the gross income, computed according to sections 3 or 4, earned by the victim in his last employment which corresponded to the one determined by the Société, projected on an annual basis, indexed following the method indicated in Schedule 2 and readjusted according to the adjustment factor foreseen in Schedule 1.
R.R.Q., 1981, c. A-25, r. 11, s. 8.