Shall each parcel of improved real property be annually taxed for fire purposes as follows: single family/$24.00 each apt., condo, mobile/ $16.00; all commercially used property including but not limited to commercial, industrial, office, professional, retail, hotel/motel as follows; 1-5,000 sq ft/ $100.00; 5,001-7,500 /sq ft/ $150.00; 7,501-10,000 sq ft/ $200.00; 10,001-20,000 sq ft/ $300.00; 20,001-50,000 sq ft/ $400.00; 50,001 or greater/ $500.00?