In any year that any part of the territorial limits of the City is not within the territorial limits of the Sandusky City School District, that part of the total tax rate levied by the City which would otherwise cause the aggregate rate of taxes levied without a vote of the people upon any property in the City to exceed 10 mills, because of the tax rates of overlapping subdivisions allowable by law within the 10 mill limitation, shall be levied outside of the 10 mill limitation, so that in each year the City shall be able to levy taxes at a uniform rate throughout the entire City without a vote of the electors. (Amend. passed by the voters 8-29-60)