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 2013 is %. (Round to two decimal places.) i Data Table The return for 2014 is %. (Round to two decimal places.) Click on the icon located on the top-right corner of the data table below in order to copy its contents into a spreadsheet.) The return for 2015 is %. (Round to two decimal places.) The return for 2016 is % (Round to two decimal places.) The average return is %. (Round to two decimal places.) The standard deviation is %. (Round to two decimal places.) o 2013 2014 2015 2016 Beginning Value $50,377 55,099 58,887 64,943 Ending Value $55,099 58,887 64,943 69,298