In addition to all other requirements now provided by law, whenever the amount of any ad valorem tax levy is required by law to be stated in any notice, upon any ballot, in any proposed budget or in any other form for the purpose of giving notice of the amount thereof to the electors or taxpayers of any taxing subdivision of the state of Kansas, the amount of such levy shall be expressed at a rate in dollars or fraction thereof upon each $1,000 of assessed valuation.