(a) Any retired judge of probate receiving benefits from the Judicial Retirement Fund shall be entitled to receive any cost-of-living adjustment provided by law for state employees who are retired under the State Employees' Retirement System after April 21, 1998.
(b) The cost-of-living adjustments provided for retired judges of probate under subsection (a) shall be financed from time to time, from the investment income of the Judicial Retirement Fund.