[["2016", "high", "low"], ["quarter ended march 31", "$ 102.93", "$ 83.07"], ["quarter ended june 30", "113.63", "101.87"], ["quarter ended september 30", "118.26", "107.57"], ["quarter ended december 31", "118.09", "99.72"], ["2015", "high", "low"], ["quarter ended march 31", "$ 101.88", "$ 93.21"], ["quarter ended june 30", "98.64", "91.99"], ["quarter ended september 30", "101.54", "86.83"], ["quarter ended december 31", "104.12", "87.23"]]