Your portfolio had the values in the following table for the four years listed: a. Calculate your return for each year over the 4-year period. Then calculate the average return over the 4-year period. b. Calculate the portfolio standard deviation. The return for 2016 is %. (Round to two decimal places.) The return for 2017 is %. (Round to two decimal places.) The return for 2018 is %. (Round to two decimal places.) The return for 2019 is %. (Round to two decimal places.) The average return is %. (Round to two decimal places.) Data Table The standard deviation is %. (Round to two decimal places.) (Click on the icon here e in order to copy its contents of the data table below into a spreadsheet.) 2016 2017 2018 Beginning Value $59,483 54,192 65,090 67,626 Ending Value $54,192 65,090 67,626 70,974 2019 Print Done