You purchase a 1000$ par-value 10-year bond with 8% semi-annual coupon rate for 900$. The purchase is made immediately after a coupon payment, so your next coupon payment is 6 months from now. You are able to re-invest the coupon payments at the nominal rate of 6% convertible semiannually. What is your effective annual compound interest-rate of return over the course of the 10 years?