The annual rates of return on shares of stock in Lowe's, the home improvement retailer, are shown below. What was the geometric average rate of return for that five-year period? 2012 2013 2014 2015 2016/60.0% 49.2% 16.8% 28.4% -11.0% 31.86% 1-26% 28.68% 21.86% 26.08%