(2) The State Treasurer shall compute and determine in January of each year, after the sale of bonds under ORS 470.220 to 470.290 and Article XI-J of the Oregon Constitution, the amount of principal, interest and redemption premiums that will fall due during the year on bonds then outstanding and unpaid and shall maintain or hold in the sinking fund sufficient moneys to pay such maturing obligations. [1979 c.672 §§21,24; 2005 c.201 §12; 2009 c.753 §71]