To calculate the number of years until maturity, assume that it is currently May 2022 . All of the bonds have a $1,000 par value and pay semiannual coupons. In the above table, find the Treasury bond that matures in May 2029. What is the coupon rate for this bond? Note: Do not round intermediate colculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16