报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2017-12-31,2016-12-31,2015-12-31,2014-12-31, 总资产利润率(%),7.19,4.52,2.06,11.42,9.33,5.92,2.29,13.5,9.34,15.47,--,28.51,--,27.52,18.95,16.31,16.39, 主营业务利润率(%),42.17,42.88,42.4,45.8,48.09,47.43,46.79,49.23,49.51,49.22,48.3,49.05,48.61,48.75,46.64,46.05,45.13, 总资产净利润率(%),7.56,4.65,2.06,12.1,9.38,5.8,2.31,19.46,13.24,15.04,--,31.13,--,29.84,19.78,17.46,16.39, 成本费用利润率(%),38.58,38.18,33.07,57.47,64.49,67.53,65.42,55.51,51.35,54.78,49.52,53.84,50.05,45.55,31.75,29.41,27.86, 营业利润率(%),27.44,27.69,24.93,35.39,37.42,38.31,37.67,33.82,32.61,34.02,31.59,33.14,31.9,31.09,24.17,22.94,21.68, 主营业务成本率(%),56.6,55.83,56.37,53.13,50.79,51.42,52.17,49.78,49.46,49.66,50.52,49.51,49.87,49.71,52,52.94,53.84, 销售净利率(%),23.56,23.37,21.09,30.86,32.3,33.51,32.07,29.85,27.56,29.11,26.87,29.39,27.19,26.84,20.73,19.57,18.29, 净资产收益率(%),8.9,5.54,2.36,13.34,10.13,6.37,2.47,14.65,10.07,18.87,--,35.07,--,34.12,24.48,22.52,22.2, 股本报酬率(%),57.4,112.4,14.9,157.11,60.33,109.63,14.95,157.48,56.38,--,--,--,--,--,--,--,--, 净资产报酬率(%),8.9,18.07,2.36,25.44,10.13,19.18,2.47,26.68,10.07,54.42,--,67.86,--,34.12,24.47,22.24,21.71, 资产报酬率(%),7.19,14.75,2.06,21.78,9.33,17.83,2.29,24.59,9.34,44.62,--,55.17,--,27.52,18.95,16.31,16.39, 销售毛利率(%),--,--,--,--,--,--,--,--,--,50.34,--,50.49,--,50.29,48,47.06,46.16, 三项费用比重(%),13.34,15.43,17.87,8.2,7.16,5.9,4.55,12.12,13.16,11.77,12.1,12.58,12.57,17.62,22.84,23.6,23.41, 非主营比重(%),5.8,9.42,15.59,4.01,2.06,2.97,0.29,3.12,0.61,0.71,0,3.27,0.54,0.9,2.21,0.39,0.59, 主营利润比重(%),153.58,154.78,169.91,127.7,126.25,120.13,123.85,141.02,151.49,143.67,152.87,143.37,151.87,155.4,192.8,201.88,206.95,