You find the following Treasury bond quotes. To calculate the number of years until maturity, assume that it is currently May $2019$ and the bond has a par value of $$1,000.$

$\backslash$table$[[,$Maturity,,,,Ask$],[$Rate$,$Mo$/$Yr$,$Bid,Asked,Chg$,$Yld$],[??,$May $24,103\mathrm{.}5397,103\mathrm{.}5275,+\mathrm{.}3235,5\mathrm{.}899],[6\mathrm{.}002,$May $29,104\mathrm{.}4887,104\mathrm{.}6344,+\mathrm{.}4233,??$