(a) A is the aggregate of all amounts each of which isi. the amount deemed by the first paragraph of section 961.17.1 to have been received by the annuitant out of or under the fund,
ii. an amount (other than an amount described in subparagraph iii) received, after the death of the annuitant, by an individual out of or under the fund and included under the first paragraph of section 961.17 in computing the individual’s income, or
iii. an amount that would, if the fund were a registered retirement savings plan, be a tax-paid amount, within the meaning of section 905.1, in respect of the fund; and