Suppose that $5$ years ago today, you bought a $6\%$ ten$-$year bond with a face value of $$100$ and annual coupons with a yield at $2\%$ per year. Since then, you have deposited the coupons in a bank at $2\%$ interest per year. Today you sell the bond at a yield of $5\%$ per year. What is the annual return of your investment?