Use the EXCEL rate function or financial calculator to answer the following question. A semi$-$annual Treasury security with coupon rate of $4\mathrm{.}625\%$ that matures in $20$ years is currently priced at $$144\mathrm{.}15$ per $$100$ of face value. What is the yield to maturity on this bond? Answer in percent, round to two decimal places, and do not enter a $\text{'}\%\text{'}$ sign.