B. For property tax years beginning on or after April 1, 2005, the commissioner shall calculate the full-value education mill rate that is required to raise the statewide total of the local cost share expectation. The full-value education mill rate is calculated for each fiscal year by dividing the applicable tax year percentage of the projected cost of funding public education from kindergarten to grade 12 statewide total local share by the certified total state applicable statewide valuation for the year prior to the most recently certified total state valuation for all municipalities. The full-value education mill rate must decline over the period from fiscal year 2005-06 to fiscal year 2009-10 2006-07 and may not exceed 9.0 mills in fiscal year 2005-06 and may not exceed 8.0 mills in fiscal year 2009-10 2006-07. The full-value education mill rate must be applied according to section 15688, subsection 3 3-A, paragraph A to determine a municipality's local cost share expectation. Full-value education mill rates must be derived according to the following schedule.

(1) For the 2005 property tax year, the full-value education mill rate is the amount necessary to result in a 47.4% statewide total local share in fiscal year 2005-06.

(2) For the 2006 property tax year, the full-value education mill rate is the amount necessary to result in a 47.4% 45% statewide total local share in fiscal year 2006-07.

(3) For the 2007 property tax year, the full-value education mill rate is the amount necessary to result in a 47.0% local share in fiscal year 2007-08.