Assume the zero-coupon yields on default-free securities are as summarized in the following table: 3 years 4 years Maturity Zero-Coupon YTMn 1 year 4.00% 2 years 4.40% 5 years 5.00% 4.70% 4.90% 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 %. (Do not round until the final answer. Then round to two decimal places.)