You find the following Treasury bond quotes. To calculate the number of years until maturity, assume that it is currently May 2016. The bonds have a par value of $1,000. Rate Maturity Mo/Yr Bid Asked Chg Ask Yld ?? May 22 103.5553 103.6435 +.3106 2.469 5.574 May 30 104.5043 104.6500 +.4377 ?? 6.198 May 40 ?? ?? +.5496 4.171 In the above table, find the Treasury bond that matures in May 2022. 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 %