Question 9 The 10-year returns of S&P500 index (which is made of 500 large stocks) are shown below. S&P 500 Return in % 18.25 31.29 -4.45 21.69 11.8 1.34 13.53 32.21 15.84 2.06 Year 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 How much is the mean annual return of the S&P500 index between 2011 and 2020? Enter your answer in the following format: 0.1234 Hint: Use finance calculator. Do not enter answer as 12.34, enter it as 0.1234. Answer is between 0.1321 and 0.155