Mo. Rev. Stat. § 288.038
With respect to initial claims filed during calendar years 1998, 1999, 2000 and 2001 and each calendar year thereafter, the "maximum weekly benefit amount" means four percent of the total wages paid to an eligible insured worker during that quarter of the worker's base period in which the worker's wages were the highest, but the maximum weekly benefit amount shall not exceed two hundred five dollars in the calendar year 1998, two hundred twenty dollars in the calendar year 1999, two hundred thirty-five dollars in the calendar year 2000, and two hundred fifty dollars in the calendar year 2001, and each calendar year thereafter. If such benefit amount is not a multiple of one dollar, such amount shall be reduced to the nearest lower full dollar amount.
(L. 1951 p. 564 § 288.030, A.L. 1957 p. 531 § 288.039, A.L. 1961 p. 430, A.L. 1965 p. 433, A.L. 1967 p. 394, A.L. 1972 H.B. 1017, A.L. 1975 S.B. 325, A.L. 1979 S.B. 477, A.L. 1984 H.B. 1251 & 1549, A.L. 1988 H.B. 1485, A.L. 1993 H.B. 502, A.L. 1994 S.B. 559, A.L. 1997 H.B. 472, A.L. 1999 H.B. 162 merged with S.B. 32)