Isabella invested in a stock for five years. The annual return over the past five years were: \3.1, and \17.5, respectively. What was her annual compounded rate of return in the past five years? (Note: Round your answer to 3 decimal places. For example, if your answer is \8.7, you should write 0.087 in the answer box. DO NOT write 8.7 in the box as you will be marked wrong)