报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-06-30,2017-12-31,2016-12-31,2015-12-31, 总资产利润率(%),2.85,2.22,1.29,5.77,4.88,3.23,1.65,15.56,11.67,--,--,17.1,9.54,13.03,19.79,13.96, 主营业务利润率(%),22.65,23.39,23.02,27.22,28.97,28.81,30.31,32.05,31.37,32.62,31.27,32.21,32.8,33.91,35.71,30.06, 总资产净利润率(%),2.9,2.24,1.31,7.39,6.2,4.02,2.08,16.38,11.86,--,--,18.72,9.92,13.83,23.46,13.96, 成本费用利润率(%),7.33,8.98,10.83,14.55,17.88,18.65,23.51,23.77,22.82,24.16,23.05,24.44,25.55,16.29,27.66,16.1, 营业利润率(%),5.85,7.08,8.18,11.1,13.09,12.94,14.25,18.05,17.41,18.12,18.21,18.57,19.29,13.18,20.43,12.91, 主营业务成本率(%),76.96,76.2,76.56,72.21,70.46,70.62,68.79,67.13,67.79,66.54,67.66,67.04,66.43,65.21,63.42,69.36, 销售净利率(%),6.03,7.1,8.37,10.93,12.99,13.46,16.86,15.88,15.28,16.02,15.44,16.14,16.58,10.76,17.7,11.4, 净资产收益率(%),4.4,3.34,1.99,7.35,6.01,3.59,1.84,21.63,16.28,--,--,25.51,14.69,20.79,35.76,26.17, 股本报酬率(%),27.29,128.36,14.75,176.14,53.02,136.41,17.56,--,--,--,--,--,--,--,--,--, 净资产报酬率(%),4.17,19.84,1.9,23.31,7.11,15.48,1.91,40.57,35.62,--,--,24.22,13.79,20.07,32.14,21.33, 资产报酬率(%),2.85,13.75,1.29,15.92,4.88,13.24,1.65,30.48,27.04,--,--,17.1,9.54,13.03,19.79,13.96, 销售毛利率(%),--,--,--,--,--,--,--,--,--,--,--,32.96,33.57,34.79,36.58,30.64, 三项费用比重(%),11.06,10.69,9.9,10.78,10.95,10.53,11.42,9.23,9.03,9.29,10.7,8.81,8.55,16.25,10.23,11.76, 非主营比重(%),19.6,15.85,19.47,19.75,16.73,17.37,26.21,1.73,2.29,2.67,0.95,0.85,0.45,1.81,0.91,1.92, 主营利润比重(%),349.71,298.23,244.55,223.95,197.69,188.99,158.88,174.71,177.01,176.08,170.76,171.99,169.46,252.89,173.24,228.51,