(1) One-half day for each full biweekly pay period for an employee with less than 3 years of service;
(2) three-fourths day for each full biweekly pay period, except that the accrual for the last full biweekly pay period in the year is one and one-fourth days, for an employee with 3 but less than employee with 3 but less than 15 years of service; and
(3) one day for each full biweekly pay period for an employee with 15 or more years of service.