Chalmers Company issued 20-year bonds with a total face amount of $600,000 and a stated rate of 11% on December 31, 2020, for $642,000. Semi-annual interest payments are made each June 30 and December 31. Chalmers uses the straight-line method for amortization of bond discount or premium. What amount of semi-annual bond interest payment would be made to bondholders each June 30 and December 31?