报告日期,2018-12-31,2017-12-31,2016-12-31,2015-12-31,2014-12-31,2013-12-31,2012-12-31,2011-12-31,2010-12-31,2009-12-31,2008-12-31,2007-12-31,2006-12-31,2005-12-31,2004-12-31,2003-12-31,2002-12-31,2001-12-31,2000-12-31,1999-12-31,1998-12-31,1997-12-31,1996-12-31,1995-12-31,1994-12-31,1993-12-31,1992-12-31,1991-12-31,1990-12-31, 总资产利润率(%),4.01,2.73,1.92,4.74,7.42,7.51,8.96,7.39,6.94,5.87,4.91,11.13,5.17,3.16,2.12,1.66,3.3,2.97,3.23,3.17,5.09,5.27,4.76,4.36,4.59,5.09,--,8.36,11.31, 主营业务利润率(%),20.88,14.7,14.67,10.3,9.38,7.35,7.42,10,12.86,13.59,12.92,15.74,16.55,16.12,16.44,17.29,18.98,13.63,13.08,12.16,13.36,13.55,12.72,14.94,100,12.54,--,10.23,10.73, 总资产净利润率(%),6.26,2.78,2.21,5.25,7.46,8.28,8.53,8.04,7.53,6.3,5.07,13.1,5.76,3.18,2.19,1.79,3.04,3.04,3.34,3.38,5.36,6.01,4.69,4.84,5.22,6.44,--,10.63,11.31, 成本费用利润率(%),15.4,5.22,4.72,5.64,6.27,5.73,5.69,6.5,7.65,7.21,5.65,16.91,6.45,4.25,3.11,3.28,4.9,3.88,3.59,3.43,5.32,6.04,5.1,5.71,--,7.83,--,5.95,6.81, 营业利润率(%),13.71,4.78,3.08,5.12,5.82,5.49,5.41,5.98,7.09,6.68,4.47,15.2,5.8,3.58,3.3,3.31,5.12,3.87,3.49,3.18,5.09,5.78,4.9,6.32,6.7,8.12,--,5.21,5.96, 主营业务成本率(%),74.28,83.98,84.24,88.53,89.69,91.65,91.77,88.98,85.82,84.92,85.38,82.32,81.5,82.13,81.7,80.84,78.95,85.21,85.74,86.8,85.43,84.92,85.43,82.76,0,83.97,--,87.21,86.61, 销售净利率(%),10.13,3.84,2.85,4.64,5.36,4.57,4.92,5.46,5.91,6.15,4.67,13.85,5.59,3.23,2.37,2.21,3.9,3.31,3.07,2.86,4.36,4.9,4.24,4.78,5.81,6.44,--,2.36,2.34, 净资产收益率(%),10.53,6.32,4.53,10.15,13.36,14.92,16.61,16.8,14.72,12.08,10.39,24.02,7.56,5.75,4,2.84,5.49,5.85,6.17,6.73,10.2,10.09,10.18,10.73,9.31,8.13,--,0.58,0.49, 股本报酬率(%),123.34,121.28,99.36,129.09,131.02,129.3,123.61,113.49,98.99,154.32,146.36,233.65,175.42,141.92,119.52,102.19,99.02,90.61,80.36,70.68,69.54,80.12,70.36,60.63,35.83,41.91,2.71,--,--, 净资产报酬率(%),14.88,15.3,13.06,22.03,23.45,26.12,27.96,30.54,29.76,29.89,32.26,43.26,33.03,34.42,29.84,26.02,26.06,23.98,21.04,20.46,21.01,18.18,17.58,15.39,8.98,8.69,0.59,66.76,56.32, 资产报酬率(%),5.61,7.23,6.16,10.82,13.62,13.57,15.93,13.31,13.85,14.24,14.21,20.16,16.63,16.93,14.53,13.34,15.03,11.76,10.87,9.41,10.61,9.73,8.2,6.24,4.59,5.45,0.44,9.58,13, 销售毛利率(%),25.72,16.02,15.76,11.52,--,8.35,--,11.02,14.18,15.08,14.62,17.68,16.74,17.87,18.3,19.16,21.05,14.79,14.25,13.2,14.57,15.08,14.57,17.24,--,16.03,--,12.79,13.39, 三项费用比重(%),9.26,12.03,11.69,7.93,6.53,5.74,5.72,7,8.76,9.74,10.37,11.48,12.74,15.11,15.39,16.32,16.46,12.33,11.29,10.25,10.18,10.03,9.29,10.86,0,7.52,--,0,0, 非主营比重(%),16.33,55.93,8.65,59.13,58.29,69.92,73.7,47.25,42.94,51.07,52.67,76.87,43.46,42.48,-1.45,1.04,-2.26,24.01,19.95,19.48,29.14,28.59,11.49,3.12,19.9,25.39,--,2.48,1.95, 主营利润比重(%),153.34,289.36,320.25,187.06,153.8,130.42,132.81,158.61,175.31,196.14,234.81,97.23,266.94,383.34,534.07,532.62,397.62,355.48,371.08,361,259.33,232.66,258.15,272.64,1491.46,168.49,--,191.45,176.33,