You find the following Treasury bond quotes. To calculate the number of years until maturity, assume that it is currently May 2019 and the bond has a par value of $1,000. Maturity Mo/Yr Ask Yld Rate Bid 103.5579 Asked Chg 103.6461 +.3132 ?? May 23 2.509 5.674 May 28 104.5069 104.6526 +.4401 ?? +.5522 6.208 May 38 ?? ?? 4.211 In the above table, find the Treasury bond that matures in May 2023. What is the coupon rate for this bond? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Coupon rate %