(1) Any appropriate distinctions made elsewhere in this chapter; and
(2) For a period of three years from January 1, 1984, the aggregate gross receipts taxes payable by any savings and loan association under the provisions of this chapter shall not be in excess of an amount that would be raised by a current ad valorem tax imposed upon the net worth of said association. As used in this chapter, the term "net worth" means all surplus, undivided profits, and reserves exclusive of any reserve required by any federal or state statute or regulation in force as of January 1, 1980, which statute or regulation was applicable to such federal or state-chartered association, and minus the fair market value of all real estate or equity therein owned by the association.