The following table shows the nominal returns on Brazilian stocks and the rate of inflation. Year Nominal Return (%) Inflation (%) 2015 0.3 6.0 2016 -18.0 6.1 2017 -16.0 6.6 2018 -41.6 10.9 2019 66.4 6.5 2020 27.1 3.1 What was the standard deviation of the market returns? Note: Use decimals, not percents, in your calculations. Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places. Calculate the average real return. Note: A negative answer should be indicated by a minus sign. Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places