Copperheads Corporation offers a $5\mathrm{.}3$ percent bond with a current market price of $$858\mathrm{.}50.$ The yield to maturity is $6\mathrm{.}29$ percent. The face value is

$$1,000.$ Interest is paid semiannually. How many years until this bond matures?

Multiple Choice

$71\mathrm{.}79$ years

$18\mathrm{.}51$ years

$37\mathrm{.}02$ years

$74\mathrm{.}05$ years

$32\mathrm{.}40$ years