(a) A deputy sheriff shall receive an annual monetary supplement in the sum of $5 multiplied by each month of service. Any incremental monetary supplement in effect prior to the effective date of this section that is more favorable to the deputy sheriffs entitled to such increase shall remain in full force and effect to the exclusion of the provisions of this section.
(b) The annual monetary supplement shall be calculated and payable on the date when the deputy sheriff completes a year of service: Provided, That a deputy sheriff who does not complete one year of service is not eligible for the annual monetary supplement or a portion thereof provided in this section.
(c) For each additional year of service that a deputy sheriff completes following his or her first year of service, the annual monetary supplement shall be calculated and payable on the date when the deputy sheriff completes the additional year of service.
(d) The annual monetary supplement shall be considered for purposes of calculating a deputy sheriff’s benefits, including, but not limited to, retirement benefits.