(1) For each grade from kindergarten to eighth for which the district operates schools, fifty-five one-hundredths of one percent (0.0055) of the real market value.
(2) For each grade from the 9th to 12th for which the district operates schools, seventy-five one-hundredths of one percent (0.0075) of the real market value. [Amended by 1953 c.697 §2; 1955 c.325 §1; 1957 c.639 §1; 1959 c.641 §34; 1963 c.9 §16; 1965 c.100 §55; 1971 c.513 §64; 1975 c.770 §5a; 1991 c.459 §384]