i've posted this already a couple times but no one has gotten the right answer

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. In the above table, find the Treasury bond that matures in May 2033. What is your yield to maturity if you buy this bond? Note: Do not round Intermedlate colculatlons and enter your onswer as a percent rounded to 2 declmal ploces, e.g., 32.16