(a) On the basis of each county's certificates of valuation as to all classes of property as determined and published by the assessors pursuant to section six, article three, chapter eleven of this code for the next ensuing fiscal year in reliance upon the assessed values annually developed by each county assessor pursuant to articles one-c and three of that chapter, the state board shall for each county compute by application of the levies for general current expense purposes, as defined in section two of this article, the amount of revenue which the levies would produce if levied upon one hundred percent of the assessed value of each of the several classes of property contained in the report or revised report of the value made to it by the Tax Commissioner as follows:
(1) For each fiscal year beginning before July 1, 2014, the state board shall first take ninety-five percent of the amount ascertained by applying these rates to the total assessed public utility valuation in each classification of property in the county. For each fiscal year beginning after June 30, 2014, the state board shall first take ninety-six percent of the amount ascertained by applying these rates to the total assessed public utility valuation in each classification of property in the county; and