报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2017-12-31,2016-12-31,2015-12-31, 总资产利润率(%),13.32,9.72,4.85,14.11,11.53,7.34,3.04,14.16,26.62,20.23,--,33.55,--,21.81,22.32,30.65,24.26, 主营业务利润率(%),33.91,35.87,38.39,42.65,43.85,42.76,42.9,42.22,41.44,40.95,40.64,38.65,38.56,37.46,40.87,38.57,29.03, 总资产净利润率(%),14.21,10.26,5.05,15.66,12.39,7.61,3.08,21.74,30.06,21.78,--,40.31,--,22.94,27.33,38.64,24.26, 成本费用利润率(%),37.88,43.35,52,51.91,58.79,57.36,53.43,48.27,49.07,48.64,46.42,42.08,43.76,39.28,26.38,37.01,21.48, 营业利润率(%),26.75,29.48,33.31,33.52,36.91,36.65,33.51,31.35,31.78,31.87,30.7,28.28,29.49,28.03,20.05,27.42,17.35, 主营业务成本率(%),65.74,63.71,61.07,56.73,55.44,56.37,55.91,57.24,58.04,58.42,58.57,60.55,60.66,61.71,58.25,60.85,70.69, 销售净利率(%),22.86,25.12,28.51,28.79,31.59,31.45,28.59,27.06,27.18,27.14,26.14,24.66,25.26,24.04,16.69,22.81,15.19, 净资产收益率(%),17.34,13.02,6.13,17.47,14.13,8.84,3.47,16.33,36.22,27.93,--,50.37,--,30.91,38.2,51.43,44.9, 股本报酬率(%),360.76,276.64,124.89,351.49,255.22,167.08,59.38,284.87,265.72,--,--,--,--,--,--,--,--, 净资产报酬率(%),17.34,14.01,6.13,18.36,14.13,9.81,3.47,17.24,36.22,30.66,--,53.55,--,30.91,38.2,51.43,44.9, 资产报酬率(%),13.32,10.45,4.85,14.84,11.53,8.15,3.04,14.95,26.62,22.21,--,35.68,--,21.81,22.32,30.65,24.26, 销售毛利率(%),--,--,--,--,--,--,--,--,--,41.58,--,39.45,--,38.29,41.75,39.15,29.31, 三项费用比重(%),4.56,3.89,2.48,7.62,7.03,7.32,6.47,7.56,6.83,6.84,7.17,6.91,6.45,9.26,20.69,10.75,11.17, 非主营比重(%),0.92,0.29,0.05,6.7,6.48,7.53,1.63,2.21,2.2,1.89,1.4,2.24,1.33,1.23,5.13,-1.47,2.33, 主营利润比重(%),126.72,121.68,115.21,126.46,118.05,115.46,126.3,133.86,129.14,127.8,131.61,134.57,129.8,132.83,194.1,144.38,164.58,