Subject to paragraph (2) of this subsection, the government of each county may set, by ordinance, an amount to supplement the State per diem and, for each fiscal year. Unless, by ordinance, a county government increases or decreases the supplement, the amount shall be enough to keep a total State per diem and county supplement equal to the county per diem as of June 30, 2001. The government of each county shall levy and appropriate for each fiscal year the amount needed to pay the State per diem, pending reimbursement by the Administrative Office of the Courts, and the county supplement, if any.