You find the following corporate bond quotes. To calculate the number of years until maturity, assume that it is currently January 15, 2016. The bonds have a par value of $2,000.

Company (Ticker)	Coupon	Maturity	Last Price	Last Yield	EST $ VOL (000's)
Xenon, Inc. (XIC)	6.100	Jan 15 2027	94.253	??	57,369
Kenny Corp. (KCC)	7.190	Jan 15 2024	??	6.16	48.948
Williams Co. (WICO)	??	Jan 15 2030	96.805	6.41	43,809

What is the coupon rate for the Williams Co. bond? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Coupon rate %