80. If the spouse of an adult for a year was not the adult’s spouse throughout the year, only that part of the following amounts, in respect of the spouse, that can reasonably be attributed to the period of the year during which the adult had a spouse shall be taken into account in the calculation of the adult’s benefit for the year:(1) work income;
(2) total income;
(3) amounts received as work income replacement;
(4) excluded amounts determined under paragraph a of subparagraph 2 of the first paragraph of section 75.