During recessionary periods, bonds that were issued many years ago have a higher coupon rate than currently issued bonds. Therefore, they may sell at a premium, a price higher than their face value, because of currently low coupon rates. A $50,000 bond that was issued 15 years ago is for sale for $58,000. What rate of return per year will a purchaser make if the bond coupon rate is 18% per year payable monthly, and the bond is due 5 years from now? The rate of return is % per year