Assume the zero-coupon yields on default-free securities are as summarized in the following table:

Maturity	1 year	2 years	3 years	4 years	5 years
Zero-Coupon Yields	5.60	5.90 %	6.30 %	6.50 %	6.90 %

Consider a four-year, default-free security with annual coupon payments and a face value of $1,000

that is issued at par. What is the coupon rate of this bond?

The par coupon rate is----------- %.

(Round to two decimal places.)