Over a 38-year period an asset had an arithmetic return of 11.5 percent and a geometric return of 9.4 percent. Using Blume's formula, what is your best estimate of the future annual returns over 4 years? 9 years? 19 years? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Future annual returns4 years 9 years 19 years