9.__Retirees without 5 years of contributions to fund.__A person who retires without making 60 months of contributions to the fund but who meets the other eligibility criteria of subsection 3, referred to in this subsection as "the retiree," is eligible to participate pursuant to this subsection.

A.__The retiree is eligible for coverage under the program upon enrollment.

B.__The retiree shall pay the dollar equivalent of the retiree's scheduled contributions based upon the following schedule:

(1)__A retiree who is at least 50 years of age and under 55 years of age shall pay 2% of that retiree's average final monthly compensation multiplied by 60;

(2)__A retiree who is at least 55 years of age and under 60 years of age shall pay 1.75% of that retiree's average final monthly compensation multiplied by 60; and

(3)__A retiree who is at least 60 years of age shall pay 1.5% of that retiree's average final monthly compensation multiplied by 60.

As used in this paragraph, "average final monthly compensation" means the average annual rate of earnable compensation, divided by 12, of a retiree during the 3 years of creditable service as a county or municipal law enforcement officer or municipal firefighter, not necessarily consecutive, in which the average annual rate of earnable compensation is highest or during the retiree's entire period of creditable service as a county or municipal law enforcement officer or municipal firefighter, if the period is less than 3 years.

C.__If the retiree has made contributions to the fund while employed as a county or municipal law enforcement officer or municipal firefighter, the retiree shall pay the difference between:

(1) The total of the retiree's employee contributions required pursuant to paragraph B based on the retiree's age as of the date of retirement; and