McConnell Corporation has bonds on the market with $19\mathrm{.}5$ years to maturity, a YTM of $6\mathrm{.}6$ percent, a par value of $$1,000,$ and a current price of $$1,043.$ The bonds make semiannual payments.

What must the coupon rate be on these bonds? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$