报告日期,2020-12-31,2019-12-31,2018-12-31,2017-12-31,2016-12-31,2015-12-31,2014-12-31,2013-12-31,2012-12-31,2011-12-31,2010-12-31,2009-12-31,2008-12-31,2007-12-31,2006-12-31,2005-12-31,2004-12-31,2003-12-31,2002-12-31,2001-12-31,2000-12-31,1999-12-31,1998-12-31,1997-12-31, 总资产利润率(%),-76.62,-5.59,1.5,5.96,6.09,7.23,8.2,8.45,8.03,6.6,8.72,8.07,7,4.56,5.2,9.2,8.34,7.27,6.96,5.63,10.62,11.17,6.56,4.84, 主营业务利润率(%),1.69,16.29,29.04,29.42,28.96,27.25,25.57,25.38,24.64,29.74,35.97,33.11,26.72,25.76,28.8,30.82,30.38,27.33,24.84,20.01,20.18,13.34,13.32,17.43, 总资产净利润率(%),-54.57,-5.22,1.57,6.63,7.18,8.35,9.12,9.35,8.68,8.57,9.92,9.62,7.95,5.7,7.37,8.84,9.14,7.68,7.64,7.79,10.72,11.65,7.09,4.84, 成本费用利润率(%),-289.55,-24.25,7.64,22.21,22.54,21.9,20.33,19.74,17.83,23.7,32.35,31.34,23.25,20.2,22.1,22.85,23.52,19.66,16.43,12.97,11.97,9.34,8.83,13.24, 营业利润率(%),-501.51,-25.77,7.02,18.26,18.29,17.81,16.72,16.31,15.2,18.88,24,24.12,19.33,16.11,18.03,18.62,18.77,16.5,15.35,11.52,10.65,8.54,8.23,11.69, 主营业务成本率(%),96.05,81.8,69.96,69.68,70.1,71.66,73.79,73.9,74.84,69.82,63.5,66.61,73.1,73.89,70.85,68.62,69.16,72.2,74.81,79.73,79.54,86.58,86.42,82.1, 销售净利率(%),-512.69,-32.5,5.8,15.46,15.42,15.26,14.33,14.08,12.91,16.53,21.62,21.1,17.06,11.29,12.11,12.43,12.87,11.02,10.67,7.66,6.97,7.71,7.38,10.46, 净资产收益率(%),--,-16.73,4.03,12.8,11.47,14.69,13.67,15.63,13.62,10.87,14.53,11.74,10.1,6.3,8.64,12.67,13.91,11.57,11.2,7.99,23.62,21.56,17.27,13.04, 股本报酬率(%),-494.17,-73.58,72.21,124.4,102.88,91.23,149.64,120.66,92.18,66.37,64.61,47.42,68.95,64.48,111.75,176.85,150.83,166.37,129.71,89.88,--,--,--,--, 净资产报酬率(%),--,-16.71,12.69,19.26,17.32,21.3,19.68,22.05,19.15,15.78,22.23,18.81,18.07,14.17,21.17,32.74,31.29,26.62,23.47,17.43,49.71,41.23,35.62,25.14, 资产报酬率(%),-67.87,-5.59,4.81,9,9.28,10.53,11.8,11.92,11.29,9.58,13.34,12.92,12.52,10.26,12.74,23.77,18.76,16.72,14.59,12.29,22.35,20.19,13.2,9.02, 销售毛利率(%),--,--,30.04,38.63,29.9,28.34,26.21,26.1,25.16,30.18,36.5,33.4,26.9,26.11,29.15,31.38,30.84,27.8,25.19,20.27,20.46,13.42,13.58,17.9, 三项费用比重(%),78.36,42.57,21.16,11.5,10.7,9.19,9.06,9.33,9.66,11.64,13.82,11.23,10.7,9.53,10.72,12.2,11.61,10.83,9.49,8.5,9.11,4.8,6.54,5.74, 非主营比重(%),1.98,-5.66,3.83,1.57,2.43,2.99,3.47,3.77,2.57,7.49,12.64,11.16,18.73,4.78,0.4,-0.12,1.75,-0.48,-10.36,-0.32,-3.97,-0.03,-1.63,-0.01, 主营利润比重(%),-0.33,-53.21,412.61,161.37,157.15,151.82,150.64,153.15,162.54,153.17,142.84,135.25,136.8,152.22,159.07,165.7,159,166.45,178.58,174.34,189.6,156.28,161.73,149.12,