报告日期,2020-12-31,2019-12-31,2018-12-31,2017-12-31,2016-12-31,2015-12-31,2014-12-31,2013-12-31,2012-12-31,2011-12-31,2010-12-31,2009-12-31,2008-12-31,2007-12-31,2006-12-31,2005-12-31,2004-12-31,2003-12-31,2002-12-31,2001-12-31,2000-12-31,1999-12-31,1998-12-31,1997-12-31,1996-12-31,1995-12-31,1994-12-31,1993-12-31,1992-12-31, 总资产利润率(%),3.09,3.01,3.41,3.2,4.59,4.12,2.25,1.81,1.98,8.54,8.01,-14.04,256.89,-112.83,-6.81,2.72,3.67,-67.27,-20.03,-24.38,0.78,-9.47,0.3,1.69,3.87,6.48,8.82,9.66,7.28, 主营业务利润率(%),37.45,36.81,43.43,43.23,43.15,40.89,39.79,40.16,35.81,40.81,40.09,8.67,1.48,4.8,-0.45,20.79,30.59,10.56,9.25,15.98,17.53,1.99,23.45,25.4,23.87,25.31,21.38,20.28,18.15, 总资产净利润率(%),3.24,3.17,3.49,3.5,4.63,4.48,2.4,1.83,2.11,9.01,13.6,-12.26,230.1,-83.25,-6.78,2.69,3.49,-42.91,-21.28,-21.77,0.72,-8.68,0.31,1.86,4.51,7.24,11.04,11.63,7.28, 成本费用利润率(%),9.86,8.61,10.17,8.35,11.23,10.47,5.76,4.23,4.09,16.93,15.6,-36.32,864.44,-144.04,-8.59,-10.72,-2.12,-69.16,-54.55,-38.89,1.92,-26.96,0.91,4.09,6.96,8.95,11.31,9.32,6.78, 营业利润率(%),5.71,4.51,7.89,7.63,9.61,8.8,4.99,3.2,3.55,13.92,13.12,-44.71,-27.72,-16.42,-8.02,-3.83,0.35,-166.82,-94.54,-52.39,2.09,-36.7,1.34,3.95,6.71,8.36,9.99,8.72,6.79, 主营业务成本率(%),62.1,62.71,56,56.19,56.54,58.9,59.93,59.33,63.94,59.03,59.69,89.78,97.48,94.75,100.16,78.73,68.69,88.72,90,83.46,81.91,97.76,76.22,74.2,75.65,74.44,78.47,75.98,77.69, 销售净利率(%),7.95,7.23,8.11,7.31,9.47,8.67,4.64,3.8,3.56,12.92,12.4,-44.23,1056.47,-161.31,-12.35,7.68,7.59,-108.88,-85.01,-53.55,2.01,-36.89,0.74,3.39,5.56,6.94,8.69,7.27,6.35, 净资产收益率(%),6.28,6.1,6.3,5.45,7.73,7.48,3.98,3.36,3.93,13.71,11.99,11.7,--,--,--,--,--,--,-207.36,-66.55,1.63,-21.43,0.76,4.7,10.05,15.75,28.25,33.09,21.47, 股本报酬率(%),84.16,78.04,73.64,65.64,62.84,59.35,48.42,44.45,41.32,52.6,45.66,7.35,203.61,-90.91,61.61,73.28,70.23,-59.79,-13.95,-59.47,22.93,-11.41,49.82,60.01,75.43,88.84,99.27,119.4,--, 净资产报酬率(%),29.81,29.06,29.65,28.3,29.92,31.41,27.78,26.72,26.53,34.83,34.64,--,--,--,--,--,--,--,-27.96,-48.04,10.91,-4.78,18.65,25.07,30.09,38.23,41.17,81.96,72.3, 资产报酬率(%),14.24,14.62,15.31,14.28,16.22,15.6,15.14,15.89,15.17,21.92,21.21,11.09,274.92,-99.57,39.45,46.53,43.59,-33.65,-3.68,-17.75,5.52,-2.35,8.69,9.04,11.6,15.74,18.51,23.93,24.5, 销售毛利率(%),--,--,44,43.81,--,41.1,40.07,40.67,--,--,40.31,10.22,2.52,5.25,-0.29,21.27,31.7,18.57,10,16.54,18.09,2.24,23.78,25.8,24.35,25.56,21.53,24.02,22.31, 三项费用比重(%),17.83,17.85,22.16,35.03,31.36,29.76,33.77,36.35,31.07,26.25,26.79,29.88,23.69,16.78,42.94,20.19,30.8,177.17,90.09,53.61,27.02,38.71,22.67,21.62,17.74,17.97,11.78,12.04,11.82, 非主营比重(%),29.42,39.23,6.33,1.22,3,5.99,9.05,22.26,8.88,3.77,3.25,-1.55,102.74,89.8,34.84,90.67,21.98,9.11,16.31,27.76,477.03,-1.44,-18.55,30.32,1.37,0.74,2.53,-1.28,-5.66, 主营利润比重(%),472.61,527.7,542.18,563.9,435.47,439.48,734.6,987.23,920.22,282.12,296.43,-19.69,0.14,-2.97,3.68,-195.14,-1441.91,-5.72,-9.37,-29.86,835.4,-5.39,2594.23,645.83,365.23,305.12,209.06,237.09,285.76,