The board of supervisors of the situs county, upon receipt of the payments pursuant to Section 19-9-151 less the payment made according to Section 19-9-153, shall pay all such funds in excess of Five Million Five Hundred Thousand Dollars ($5,500,000.00) to the governing authorities of the public school districts in such county in the proportion that the average daily attendance for the preceding scholastic year of each school district bears to the total average daily attendance of the county for the preceding scholastic year. Such funds may be expended only for the purposes of capital improvements to school facilities and only after plans therefor have been submitted to and approved by the Educational Finance Commission or its successor. The governing authorities of such school districts may borrow money in anticipation of receipt of payments pursuant to this section and the levying authority for the school district may issue negotiable notes therefor, for the purposes set forth herein. Such loan shall be repaid from the payments received under this section by the governing authorities of the public school district. However, no public school districts within the situs county shall be entitled to any payments after January 1, 1990.