Subsection (b) shall not apply in the case of amounts received after December 31, 1965, as an annuity under chapter
73 of title
10 of the United States Code, but all such amounts shall be excluded from gross income until there has been so excluded (under section
122
(b)(1) or this section, including amounts excluded before January 1, 1966) an amount equal to the consideration for the contract (as defined by section
122
(b)(2)), plus any amount treated pursuant to section
101
(b)(2)(D) (as in effect on the day before the date of the enactment of the Small Business Job Protection Act of 1996) as additional consideration paid by the employee. Thereafter all amounts so received shall be included in gross income.