Destin Co. issued $250,000, 9%, 10 year bonds on January 1, 2011. On December 31, 2012 (after the periodic interest payment was made), the umortized discount is $642. On January 1, 2013, Destin retires one-half of these bonds on the open market at 101%. Have market interest rates increased, decreased, or stayed the same since the bonds were issued? O Increased O Decreased O Stayed the same O Cannot be determined