(1) An employee shall be entitled to paid annual leave of—
(a) eight days for every twelve months of continuous service
with the same employer if he has been employed by that
employer for a period of less than two years;
(b) twelve days for every twelve months of continuous
service with the same employer if he has been employed
by that employer for a period of two years or more but
less than five years; and
(c) sixteen days for every twelve months of continuous
service with the same employer if he has been employed
by that employer for a period of five years or more,