You have found an asset with an arithmetic average return of $12\mathrm{.}90$ percent and a geometric average return of $10\mathrm{.}30$ percent. Your observation period is $40$ years. What is your best estimate of the return of the asset over the next $5$ years? $10$ years? $20$ years?

Note: Do not round intermediate calculations. Enter your answers as a percent rounded to $2$ decimal places.