LKD Company has $13$ percent coupon bonds with a YTM of $9\mathrm{.}7$ percent. The current yield on these bonds is $10\mathrm{.}2$ percent. How many years do these bonds have left until they mature?

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.

Answer is complete but not entirely correct.

$\backslash$table$[[$Years until maturity,$17\mathrm{.}76$M