You find the following Treasury bond quotes. To calculate the number of years until maturity, assume that it is currently May $2022.$ All of the bonds have a par value of $$1,000$ and pay semiannual coupons.

$\backslash$table$[[,$Maturity,,,,$],[$Rate$,$Month$/$Year$,$Bid,Asked,Change,Ask Yield$],[2?,$May $34,103\mathrm{.}4755,103\mathrm{.}5483,+\mathrm{.}3158,6\mathrm{.}219],[5\mathrm{.}774,$May $37,104\mathrm{.}5095,104\mathrm{.}6552,+\mathrm{.}4425,??$