(g) Whenever the State Bond Commission authorizes the issuance of a series of bonds which consist of or include term bonds, the commission shall establish by resolution a sinking fund for such series which fund shall be held as the commission shall determine, by a trustee or by the Treasurer separate and apart from other funds of the state and shall be used and applied only to the payment of principal of and redemption premium, if any, on the term bonds of such series whether at maturity or on the redemption date thereof. The amount of the annual sinking fund requirement for the outstanding term bonds of such series shall be determined by the commission in such resolution but shall not be less than an amount which, computed from the date of such term bonds or from the last maturity date of any serial bonds of such series of bonds, whichever is later, would if thereafter annually contributed to such fund, with the fund and with the accumulations thereon invested at a rate of four per cent per annum, produce at the date of maturity of such term bonds an amount equal to the amount of such term bonds and shall be deposited in the sinking fund from the General Fund of the state annually commencing one year after the date of the bonds or after the last maturity date of any serial bonds of such series of bonds, whichever is later. Any part of the annual sinking fund requirement, which arises from deposit in the sinking fund of moneys from the Rental Housing Fund, when permitted pursuant to this section, shall be deducted from the amount of the annual sinking fund requirement to be paid from the General Fund of the state. Appropriation of all amounts necessary to meet the annual sinking fund requirement is hereby made and the State Bond Commission is hereby authorized to