The treasurer of state may invest in linked deposits under sections 135.61 to 135.67, short-term installment loan linked deposits under sections 135.68 to 135.70, agricultural linked deposits under sections 135.71 to 135.76, business linked deposits under sections 135.77 to 135.774, adoption linked deposits under sections 135.79 to 135.796, housing linked deposits under sections 135.81 to 135.87, assistive technology device linked deposits under sections 135.91 to 135.97, and SaveNOW linked deposits under sections 135.101 to 135.106 of the Revised Code, provided that at the time of placement of any such linked deposit the combined amount of investments in all such linked deposits is not more than twelve per cent of the state’s total average investment portfolio as determined by the treasurer of state. When deciding whether to invest in any such linked deposits, the treasurer of state shall give priority to the investment, liquidity, and cash flow needs of the state.