Amanda, age 25, currently has $10,000 in her savings account. She figures that she can save $20,000 per year at the start of each year (starting one year from now) indefinitely. She thinks that she can earn an after-tax return of 8% on her investments. She wants to have $1,000,000 at which point she will retire. How long will it take her to achieve her goal? Round your answer to 1 decimal point.