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.

$\backslash$table$[[\backslash$table$[[$Company $($Ticker$)],[$Xenon$,$ Incorporated $($XIC$)],[$Kenny Corporation $($KCC$)],[$Williams Company $($WIC$0)]],\backslash$table$[[$Coupon$],[5\mathrm{.}900],[7\mathrm{.}170],[??$