Okla. Stat. tit. 62, § 57.152

The State Treasurer shall deposit in the State of Oklahoma Building Bonds of 1968 Sinking Fund, in addition to all other amounts required to be deposited therein, the following sums for the following fiscal year for the payment of the principal upon the Series B Bonds: FISCAL YEAR AMOUNT BEGINNING JULY 1 1970 -0- 1971 -0- 1972 $ 708,000.00 1973 750,000.00 1974 795,000.00 1975 845,000.00 1976 895,000.00 1977 950,000.00 1978 1,005,000.00 1979 1,070,000.00 1980 1,130,000.00 1981 1,195,000.00 1982 1,270,000.00 1983 1,350,000.00 1984 1,425,000.00 1985 1,510,000.00 1986 1,605,000.00 1987 1,700,000.00 1988 1,800,000.00 1989 1,910,000.00 1990 2,025,000.00 1991 2,140,000.00 Laws 1970, c. 317, § 2, emerg. eff. April 27, 1970.