You find the following corporate bond quotes. To calculate the number of years until maturity, assume that it is currently January 15, 2022. The bonds have a par value of $2,000 and semiannual coupons. Company (Ticker) Coupon Maturity Last Price Last Yield Estimated $ Volume (000s) Xenon, Incorporated (XIC) 6.30 January 15, 2043 94.291 ?? 57,371 Kenny Corporation (KCC) 7.21 January 15, 2037 ?? 6.20 48,950 Williams Company (WICO) ?? January 15, 2039 94.825 7.02 43,811 What is the yield to maturity for the b