If the board determines that the fund has obtained a total return on investments of nine and six hundredths percent or higher for the fiscal year ending June 30, 2007, or June 30, 2008, the board shall authorize an additional payment equal to seventy-five percent of the January retirement allowance following the fiscal yearend to each eligible retiree in pay status as of that January, excluding judicial retirees and beneficiaries, but including joint and survivor and term certain beneficiaries, under this chapter. The board may only make one payment to each retiree under this section.
N.D.C.C. § 54-52-17.13