In any fiscal year, the amount appropriated for distribution as school building grants in accordance with the version of N.H. Rev. Stat. § 198:15-b in effect prior to July 1, 2012 shall first be awarded to a school district for an eligible project funded before July 1, 2012. If the amount appropriated is insufficient the appropriation shall be prorated proportionally among the districts entitled to a grant. If the amount appropriated exceeds the amount necessary to fully fund grants to a school district for eligible construction projects funded before July 1, 2012, the remaining amount of the appropriation shall be awarded to a school district for an eligible new proposal in the ranked order developed pursuant to N.H. Rev. Stat. § 198:15-c, II(a) and II(b). Such a district shall receive a grant equal to 100 percent of the eligible amount of the request until the amount appropriated has been exhausted. A partial grant may be awarded to the extent that funds are available. If a school district declines a full or partial grant, a grant shall be made to the next ranked school district until the amount appropriated has been exhausted. Any amounts not distributed in the first year of any biennium may be distributed in the second year if required to distribute the maximum amount permissible under N.H. Rev. Stat. § 198:15-a.