According to a state report, for the 2011–2012 school year budgets, 247 school districts adopted a resolution certifying that tax rates would not be increased above their index; 250 school districts adopted a preliminary budget. Of the 250 school districts that adopted a preliminary budget, 231 adopted real estate tax rates that exceeded their index. Tax rate increases in the other 19 school districts that adopted a preliminary budget did not exceed the school district's index. Of the districts who sought exceptions 221 used the pension costs exemption and 171 sought a Special Education costs exemption. Only 1 school district sought an exemption for Nonacademic School Construction Project, while 1 sought an exception for Electoral debt for school construction.