报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2017-12-31,2016-12-31, 总资产利润率(%),4.39,4.03,1.17,7.8,5.77,4.27,1.56,10.47,--,4.81,--,7.44,5.71,4.79, 主营业务利润率(%),23.59,23.31,22.96,27.18,28.81,28.87,30.77,29.42,29.4,30.08,29.61,28.45,26.35,25.7, 总资产净利润率(%),4.66,4.29,1.19,9.45,6.95,4.36,1.47,11,--,4.98,--,7.54,5.63,4.79, 成本费用利润率(%),7.95,11.03,7.1,13.35,13.71,11.81,11.31,12.99,10.94,12.14,10.81,8.38,6.29,5.67, 营业利润率(%),7.04,9.57,6.33,11.7,12.03,10.66,11.52,11.18,9.27,10.1,8.84,7.32,5.68,5.11, 主营业务成本率(%),75.85,76.16,76.59,72.21,70.62,70.52,68.71,69.89,69.96,69.27,69.77,70.89,72.89,73.49, 销售净利率(%),6.65,8.71,5.62,9.98,10.1,8.69,8.34,9.81,8.22,9,8.17,6.58,4.83,4.11, 净资产收益率(%),8.83,8.23,2.16,14.23,10.8,10,3.34,26.09,--,13.61,--,22.65,21.89,22.41, 股本报酬率(%),38.79,98.06,9.5,120.91,44.91,--,--,--,--,--,--,--,--,--, 净资产报酬率(%),8.83,22.49,2.16,27.96,10.8,10,28.75,51.37,--,13.61,--,22.65,21.89,22.41, 资产报酬率(%),4.39,11.01,1.17,15.32,5.77,4.27,13.43,20.61,--,4.81,--,7.44,5.71,4.79, 销售毛利率(%),--,--,--,--,--,--,--,--,--,--,--,29.11,27.11,26.51, 三项费用比重(%),12.48,10.41,11.71,12.45,13.34,13.04,14.04,15.69,14.89,14.51,14.54,16.28,17.29,16.91, 非主营比重(%),1.51,1.06,0.72,-2.8,-3.8,-7.27,-22.34,-0.05,0.37,0.79,2.13,0.67,0.81,2.14, 主营利润比重(%),333.59,242.65,364.13,238.79,248.64,290.47,326.71,262.5,314.52,293.57,322.39,386.3,460.6,496.99,