(a) Each county shall provide a courtroom for the general sessions court in the county seat and all necessary supplies and equipment for the maintenance of the court and shall defray the expenses thereof from the general fund of the county.

(b) In counties having a population of not less than thirteen thousand two hundred seventy-five (13,275) nor more than thirteen thousand two hundred ninety-five (13,295) and not less than fourteen thousand six hundred fifty (14,650) nor more than fourteen thousand six hundred seventy (14,670), according to the federal census of 1960 and every subsequent federal census, the general sessions judges shall be entitled to secretarial and office expenses in the amount of six hundred dollars ($600) per annum, payable monthly from the general funds of such counties.

(c) In counties having a population of not less than twenty-four thousand two hundred twenty (24,220) nor more than twenty-four thousand two hundred thirty-five (24,235) or not less than twelve thousand five hundred (12,500) nor more than twelve thousand six hundred (12,600), according to the 1960 federal census or any subsequent federal census, the general sessions judge shall be entitled to an allowance of one thousand dollars ($1,000) per annum, for secretarial and office expenses and the same shall be paid in equal monthly installments from the general fund of the counties.

(d) In counties of this state having a population of not less than twenty-four thousand five hundred seventy (24,570) nor more than twenty-four thousand five hundred eighty (24,580), according to the 1960 federal census or any subsequent federal census, the general sessions judge shall be entitled to an allowance of one thousand eight hundred dollars ($1,800) per annum for secretarial and office expenses, to be paid in equal monthly installments from the general fund of the county.