报告日期,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(%),2.82,1.9,2.04,1.83,3.18,2.78,2.56,2.56,1.91,1.7,1.5,2.69,2.63,1.58,2.57,2.11,1.14,0.65,0.34,2.93,2.1,1.95,5.42,6.5,7.21,10.76,10.08,--, 主营业务利润率(%),40.43,53.21,41.7,33.58,28.98,20.9,19.85,31.49,35.61,28.18,33.86,34.93,35.24,35.24,39.07,44.88,45.79,30.5,22.51,27.41,24.76,24.04,25.41,22.04,18.83,100,23.81,--, 总资产净利润率(%),2.56,1.98,2.08,2.03,3.35,2.88,2.76,2.37,1.97,1.84,1.59,2.7,2.7,1.54,2.59,2.09,1.17,0.63,0.35,3.1,2.17,2.17,6.18,7.2,8.61,11.21,12.19,--, 成本费用利润率(%),6.53,7.06,9.71,12.39,11.47,5.58,5.44,5.66,5.81,5.33,5.95,7.64,9.62,7.11,9.6,7.51,3.65,0.47,0.35,10.73,7.57,7.25,15.94,17.87,20.91,--,23.51,--, 营业利润率(%),3.9,6.25,7.21,6.78,7.49,4.11,4.09,6.81,7.24,3.31,3.39,5.38,8.03,4.1,9.3,7.26,4.11,-1.01,0.25,8.84,7.85,7.86,15.35,16.28,20.03,21.32,20.12,--, 主营业务成本率(%),58.4,45.4,56.4,64.89,70.23,78.63,79.77,67.96,63.12,71.08,65.47,64.56,64.14,64.02,61.02,53.44,53.12,68.7,76.74,71.72,74.51,75.5,73.98,77.44,80.6,0,73.8,--, 销售净利率(%),4.37,4.91,6.64,6.27,8.14,4.57,4.15,3.89,3.98,4.07,3.22,5.11,5.65,4.05,7.67,6.76,4.39,2.51,1.19,11.06,7.96,7.1,14.44,15.2,18.2,19.51,19.11,--, 净资产收益率(%),4.69,3.73,3.8,3.5,4.91,3.95,5.67,4.85,4.21,3.77,2.71,4.44,4.1,3.38,4.06,3.62,2.46,1.46,0.73,5.61,3.81,3.03,7.21,10.21,10.02,14,11.78,--, 股本报酬率(%),33.15,32.37,31.02,28.15,37.76,44.06,49.92,46.59,43.46,41.77,36.91,35.98,32.15,24.99,39.5,33,25.31,21,15.56,21.97,22.45,21.39,27.7,39.71,34.09,47.1,45.14,--, 净资产报酬率(%),17.99,18.09,17.82,16.62,17.6,16.43,26.36,25.28,23.53,23.16,22.71,22.7,20.92,16.94,19.88,17.54,14.59,12.66,9.26,10.89,9.05,7.22,9.87,13.06,12.28,14.14,14.4,1.62, 资产报酬率(%),10.47,8.51,8.86,8.36,10.82,10.79,11.18,12.22,9.84,10.06,10.5,11.48,10.33,8.48,9.82,8.34,6.27,5.52,3.84,6.07,5.36,4.58,7.44,8.35,8.88,10.76,11.2,1.18, 销售毛利率(%),--,54.6,43.6,35.11,29.77,21.37,20.23,32.04,36.88,28.92,34.53,35.44,35.86,35.34,38.98,46.56,46.88,31.3,23.26,30.24,25.49,24.5,26.02,22.56,19.4,--,26.2,--, 三项费用比重(%),32.35,44.9,35.83,27.22,20.55,16.52,15.43,25.94,25.48,24.35,27.73,26.19,26.21,30.37,33.09,38.95,43.88,33.73,23.78,27.59,28.24,24.7,18.55,12.63,14.6,0,8.85,--, 非主营比重(%),32.36,2.33,19.46,49.13,30.87,22.2,17.4,19.21,-42.28,47.2,35.4,-0.25,17.41,20.7,10.45,-10.25,-7.54,364.62,-89.34,61.76,97.81,60.47,42.42,2.76,26.69,60.57,-0.65,--, 主营利润比重(%),673.24,822.52,455.96,289.49,276,391.77,381.91,588.87,682.11,549.46,605.98,500.62,402.71,521.28,432.92,635.23,1277.93,6300.47,6382.91,255.01,316.08,329.62,171.14,136.1,94,469.12,119.13,--,