If local effort increases on a statewide aggregate basis by a greater percentage than local need on a statewide aggregate basis from any one year to the next, for the following year, the levy specified in subdivision 13-37-35.1(7) shall be reduced proportionally so that the percentage increase in local effort on a statewide aggregate basis equals the percentage increase in need on a statewide aggregate basis.
SDCL 13-37-16.2