To carry out section 79-1241.03, it is the intent of the Legislature to appropriate for each fiscal year the amount appropriated in the prior year increased by the percentage growth in the fall membership of member districts plus the basic allowable growth rate described in section 79-1025. For purposes of this section, fall membership has the same meaning as in section 79-1003. Fall membership data used to compute growth shall be from the two most recently available fall membership reports.