Nothing in this chapter shall be construed to require the state in any fiscal year to provide money for trial court costs from any state fund that is in excess of the total amount available for disbursement from that fund during the fiscal year. The Judicial Council may reallocate moneys pursuant to Section 68502.5 if at any time during the fiscal year it determines that the amount available for disbursement from any state fund will be less than or greater than the amount already allocated from that fund for that fiscal year.