(1) For services in extending the annual installments, the municipal improvement district shall pay the county clerk one and one-half percent (1½%) of the total amount extended.
(2) For services in collecting the annual installments, the district shall pay to the county tax collector one and three-eighths percent (13/8%) of the amount collected by him, which he may withhold.
(3) For services in disbursing the moneys, the district shall pay the county treasurer one-eighth of one percent (1/8 of 1%) of the amount received by him from the collector, which he may withhold.