报告日期,2021-12-31,2020-12-31,2019-12-31,2018-12-31,2017-12-31,2016-12-31,2015-12-31,2014-12-31,2013-12-31,2012-12-31,2011-12-31, 总资产利润率(%),2.52,2.38,3.07,3.45,4.5,4.75,4.93,6.79,7.85,8.89,9.93, 主营业务利润率(%),25.69,27.84,31.76,31.49,34.41,36.68,34.74,39.8,40.68,43.76,45.01, 总资产净利润率(%),2.59,2.7,3.21,3.69,4.61,5.39,5.13,7.34,8.46,9.98,9.93, 成本费用利润率(%),8.37,10.6,12.37,13.67,17.87,20.56,16.47,21.04,22.31,27.97,30.85, 营业利润率(%),7.36,9.17,9.77,11.39,15.34,17.26,12.8,16.57,17.66,19.6,21.37, 主营业务成本率(%),73.72,71.58,67.69,67.78,64.71,62.45,64.75,59.71,59,55.94,54.81, 销售净利率(%),6.96,8.1,9.1,9.98,13.19,14.56,12.4,15.11,15.78,19.12,20.5, 净资产收益率(%),4.32,3.97,5.56,5.93,7.02,7.41,8.71,12.12,13.56,15.2,18.25, 股本报酬率(%),249.13,231.69,254.34,306.24,328.76,277.69,--,--,--,--,--, 净资产报酬率(%),59.37,56.5,68.02,65.51,56.28,49.98,59.51,12.12,13.56,15.2,18.25, 资产报酬率(%),34.7,33.93,37.48,38.1,36.1,32.03,33.66,6.79,7.85,8.89,9.93, 销售毛利率(%),--,--,--,32.22,35.29,37.55,35.25,40.29,41,44.06,45.19, 三项费用比重(%),12.43,13.11,16.05,14.9,19.6,18.93,21.1,22.86,22.47,22.87,22.9, 非主营比重(%),-0.75,-1.2,6.3,0.1,-0.78,-2.06,10,5.18,3.21,11.43,11.08, 主营利润比重(%),353.7,307.96,304.64,276.26,225.99,216.92,244.31,227.8,222.94,197.78,187.29,