报告日期,2020-12-31,2019-12-31,2018-12-31,2017-12-31,2016-12-31,2015-12-31,2014-12-31,2013-12-31,2012-12-31,2011-12-31, 总资产利润率(%),5.6,10.38,8.62,9.42,8.09,11.07,10.84,12.64,11.67,18.5, 主营业务利润率(%),25.56,31.05,26.42,26.92,31.23,27.59,25.33,26.32,21.52,27.43, 总资产净利润率(%),6.3,11.41,10.29,10.19,10.02,11.43,10.8,12.93,11.33,18.5, 成本费用利润率(%),13.59,21.66,17.2,18.42,20.29,16.67,13.36,15.29,10.58,18.46, 营业利润率(%),11.96,17.18,14.63,16.05,15.78,13.4,11.49,12.61,8.97,15.6, 主营业务成本率(%),73.81,68.63,73.22,72.23,67.93,71.68,73.83,72.98,77.79,71.87, 销售净利率(%),10.18,14.13,12.24,13.24,14.16,11.94,9.85,11.02,8.04,13.31, 净资产收益率(%),9.89,15.67,13.99,11.55,9.23,13.85,13.78,17.49,17.08,37.94, 股本报酬率(%),122.04,123.21,126.86,108.82,90.53,--,--,--,--,--, 净资产报酬率(%),31.32,41.09,29.64,31.22,28.51,44.47,42.74,45.35,47.94,67.68, 资产报酬率(%),17.62,22.6,20.25,25.45,24.99,35.54,33.61,32.77,31.23,34.64, 销售毛利率(%),--,--,26.78,27.77,32.07,28.32,26.17,27.02,22.21,28.13, 三项费用比重(%),11.36,10.63,9,12.2,15.73,13.49,13.56,13.65,11.94,11.71, 非主营比重(%),-1.93,0.35,-1.56,2.83,8.16,6.74,2.52,5.56,6.31,-5.38, 主营利润比重(%),219.22,180.14,186.03,171.44,182.18,192.62,214.92,197.17,224.85,176.35,