Vou purchase a 5 year bond that has a par value of $1,000 and an annual Coupon payments of S70 each year (paid once a year). Based on this information, determine the duration in years) of this bend if the annual yield-to-maturity is 120 percent. Enter your answer in years, to 2 decimal places. For example, if your answer is 7.7546 years, enter "7.75