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.

Rate	Maturity Mo/Yr	Bid	Asked	Chg	Ask Yld
??	May 23	103.4534	103.5262	+.3222	5.879
5.952	May 28	104.4874	104.6331	+.4221	??
6.133	May 38	??	??	+.5327	3.911

In the above table, find the Treasury bond that matures in May 2028. What is your yield to maturity if you buy this bond? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)