报告日期,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2015-12-31,2014-12-31,2013-12-31, 总资产利润率(%),5.49,4.4,3.06,1.42,5.8,4.43,3.28,1.19,7.9,5.66,3.93,1.11,7.38,6.66,4.86,--,10.5,--,11.48,10.61,9.11, 主营业务利润率(%),28.05,30.6,30.96,33.06,30.79,31.44,31.54,32.35,32.86,32.13,33.25,30.99,33.05,32.43,33.89,31.14,35.34,34.98,37.99,38.35,36.8, 总资产净利润率(%),5.57,4.4,3.06,1.4,5.96,4.51,3.37,1.21,8.34,5.87,4.05,1.13,8.82,6.89,4.92,--,11.28,--,12.28,11.78,9.11, 成本费用利润率(%),17.26,20.7,21.64,25.95,17.65,20.05,21.58,18.12,24.16,24.88,24.36,16.38,21.38,21.34,21.67,13.16,25.1,22.49,28.54,26.5,23.4, 营业利润率(%),14.22,16.81,17.4,21.32,14.53,16.2,17.33,14.8,18.3,18.66,18.64,13.94,16.96,15.38,16.61,11.52,17.93,16.34,20.87,19.54,17.04, 主营业务成本率(%),71.1,68.54,68.19,66.35,68.75,68.07,67.91,67.01,66.24,66.93,65.77,68.41,66.03,66.52,65.21,68.2,63.73,64.27,61.14,60.7,62.32, 销售净利率(%),12.24,14.5,14.85,17.73,12.42,13.75,14.75,12.44,16.04,16.5,16.8,11.88,15.16,15.3,15.39,10.09,17.17,15.75,19.2,18.01,16.55, 净资产收益率(%),7.19,5.68,4.02,1.81,7.82,5.97,4.56,1.64,10.73,7.65,5.39,1.5,9.86,12,8.69,--,19.46,--,22.04,21.98,18.76, 股本报酬率(%),179.41,36.66,143.71,11.44,154.15,36.22,124.16,9.69,149.92,42.99,111.22,11.29,174.08,--,--,--,--,--,--,--,--, 净资产报酬率(%),27.35,5.68,22.67,1.81,24.9,5.97,20.76,1.64,25.8,7.65,20.29,1.5,23.5,35.9,32.2,--,40.75,--,37.92,37.07,18.76, 资产报酬率(%),20.9,4.4,17.28,1.42,18.48,4.43,14.92,1.19,18.99,5.66,14.81,1.11,17.61,19.94,18,--,21.99,--,19.74,17.9,9.11, 销售毛利率(%),--,--,--,--,--,--,32.09,32.99,33.76,33.07,34.23,31.59,33.97,33.48,34.79,31.8,36.27,35.73,38.86,39.3,37.68, 三项费用比重(%),9.83,11.27,10.33,12.92,12.63,12.15,12.01,14.17,11.58,10.74,15.03,17.75,16.38,16.48,16.97,19.63,16.03,17.08,16.69,17.81,19.64, 非主营比重(%),0.14,0.04,-0.63,-2.38,0.57,1.12,1.17,1.87,9.4,11.38,11.74,3.13,4.79,14.25,7.76,1.08,10.6,9.96,9.02,9.92,12.65, 主营利润比重(%),198.77,183.23,180.21,159.52,213.1,194.29,181.67,218.15,172.79,164.32,166.92,218.01,185.49,180.84,188.2,267.39,174.49,189.47,169.16,182.15,189.81,