Assume the zero-coupon yields on default-free securities are as summarized in the following table: Maturity 2 years 3 years Zero-Coupon Yields 4.20% 4.50% 4.80% 1 year 4 years 5 years 5.40% 5.10% 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 1% (Round to two decimal places.)