(a) The state prosecuting attorney and each state prosecutor is entitled to receive not less than $22,500 a year from the state to be used by the attorney or prosecutor to help defray the salaries and expenses of the office. That money may not be used to supplement the attorney's or prosecutor's salary.
(b) The state prosecuting attorney and each state prosecutor shall submit annually to the comptroller of public accounts a sworn account showing how this money was spent during the year.