Drongo Corporation's 2-year bonds yield 6.81%. The real risk-free rate is 2.7%. The maturity risk premium is estimated to be 0.09%(t-1), where t is equal to the time to maturity. The default and liquidity premiums for Drongo's bonds total 1.27% and are believed to be the same for all bonds issued by the company. If the average inflation rate is expected to be 5.51% for years subsequent to 2 through year 9, what is the yield on a 9-year bond for Drongo?