(3)If a public entity is unable to pay a judgment during the fiscal year in which it becomes final because of lack of available funds, the public entity shall levy a tax, in a separate item to cover such judgment, sufficient to discharge such judgment in the next fiscal year or in the succeeding fiscal year if the budget of the public entity has been finally adopted for the fiscal year in which the judgment becomes final before such judgment becomes final; but in no event shall such annual levy for one or more judgments exceed a total of ten mills, exclusive of existing mill levies. The public entity shall continue to levy such tax, not to exceed a total annual levy of ten mills, exclusive of existing mill levies, but in no event less than ten mills if such judgment will not be discharged by a lesser levy, until such judgment is discharged. In the event that more than one judgment is unsatisfied and a ten-mill levy is insufficient to satisfy the judgments in one year, the proceeds of the ten-mill levy shall be prorated annually among the judgment creditors in the proportion that each outstanding judgment bears to the total judgments outstanding.