报告日期,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2016-06-30,2016-03-31,2015-12-31,2015-09-30,2015-06-30,2015-03-31,2014-12-31,2014-09-30,2014-06-30,2014-03-31,2013-12-31,2012-12-31,2011-12-31, 总资产利润率(%),3.25,10.38,8.24,6.04,2.91,11.13,9.25,6.13,2.85,10.88,8.3,5.53,2.6,7.94,5.5,4.77,2.23,9.51,7.38,5.63,2.64,9.67,7.14,4.72,--,13.11,--,--,--,14.99,15.16,17.98, 主营业务利润率(%),29.15,29.95,30.04,31.33,33.48,35.57,35.68,35.7,33.71,32.95,32.7,32.07,29.95,29.69,29.76,30.23,30.08,32.62,34.28,35.35,34.6,33.87,33.69,33.99,33.59,31.25,30.86,32.21,100,34.23,35.28,31.18, 总资产净利润率(%),3.33,10.93,8.35,6.15,2.96,11.87,9.32,6.11,2.86,11.22,8.34,5.55,2.64,8.97,6.07,4.84,2.25,10.05,7.61,5.79,2.69,12.22,8.84,5.84,--,13.97,--,--,--,15.71,19.28,17.98, 成本费用利润率(%),26.65,25.69,26.93,29.96,29.47,28.71,30.28,29.04,26.45,26.47,26.52,24.89,23.58,21.64,20.96,22.85,21.87,24.2,25.35,28.12,26.27,24.28,22.98,21.95,21.17,19.99,17.96,22.72,--,23.46,24.85,21.15, 营业利润率(%),20.64,20.51,21.05,22.85,22.7,22.34,23.04,21.95,20.53,20.62,20.7,19.95,17.37,17.91,16.02,17.38,17.3,18.8,19.56,21.19,20.52,18.43,17.28,17.78,17.17,14.75,13.57,16.56,14.67,18.27,18.18,16.43, 主营业务成本率(%),69.96,69.04,68.92,67.63,65.4,63.47,63.31,63.38,65.31,66.08,66.28,66.9,68.92,69.08,68.92,68.39,68.45,66.2,64.98,63.89,64.52,65.36,65.55,65.28,65.73,68,68.22,66.8,--,65.38,64.09,68.2, 销售净利率(%),17.83,17.61,18.12,19.7,19.44,19.43,20.24,19.42,17.69,18.01,17.96,17.34,16.46,15.58,15.19,16.44,15.53,17.03,17.64,19.16,17.97,17.1,16.32,15.45,14.54,14.59,13.27,16.21,13.02,16.45,17.49,15.25, 净资产收益率(%),5.04,16.05,12.21,9.24,4.34,16.05,12.26,8.17,3.79,14.22,10.6,7.35,3.46,11.4,7.76,6.07,2.81,12.11,9.23,7.16,3.35,12.19,8.83,6.01,5.28,19.71,--,--,--,23.47,26.54,22.76, 股本报酬率(%),17.04,120.14,38.04,94.62,17.48,141.14,47.81,100.3,14.66,118.77,40.15,84.62,19.25,135.94,37.44,77.81,12.57,97.18,38.76,68.07,27.12,161.86,66.58,102.08,28.39,160.63,66.76,56.89,--,--,--,--, 净资产报酬率(%),4.47,33.09,10.88,27.84,3.92,32.93,11.54,24.52,3.53,29.63,10.41,22.73,3.45,25.22,7.23,17.43,2.81,22.39,9.23,16.57,3.35,20.68,8.83,13.96,--,31.55,--,--,--,32.53,26.54,22.76, 资产报酬率(%),3.25,24.07,8.24,20.3,2.91,24.25,9.25,19.79,2.85,23.29,8.3,17.57,2.6,18.93,5.5,13.71,2.23,17.58,7.38,13.03,2.64,16.4,7.14,10.94,--,20.98,--,--,--,20.78,15.16,17.98, 销售毛利率(%),--,--,--,--,--,--,--,36.62,34.69,--,33.72,33.1,31.08,30.92,31.08,31.61,31.55,--,35.02,36.11,35.48,--,34.45,34.72,--,--,31.78,33.2,--,34.62,35.91,31.8, 三项费用比重(%),7.07,8.49,7.82,7.28,9.69,13.06,12.24,12.17,11.42,12.64,12.02,14.63,12.77,14.89,14.9,14.35,13.07,14.93,15.55,15.02,14.64,16.28,16.66,16.15,15.03,16.45,16.83,15.46,0,15.88,16.96,14.57, 非主营比重(%),3.4,1.57,3.24,3.13,1.03,4.09,5.9,7.47,6.66,8.76,8.24,8.39,16.42,10.44,18.53,18.37,12.44,11.51,10.68,10.11,11.25,12.22,12.83,1.61,0.51,13.67,12.49,12.81,0,4.66,10.45,6.84, 主营利润比重(%),140.39,148.45,143.4,137.72,149.09,159.89,153.88,160.76,164.03,156.21,155.42,156.07,153.37,161.05,166.77,157.31,165.74,163.76,166.35,157.8,164.57,169.29,176.72,188.45,194.9,183.5,199.85,170.32,651.13,178.66,173.81,176.81,