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, 应收账款周转率(次),5.6,6.29,5.65,4.84,4.68,16.42,12.62,30.24,5.69,11.63,19.23,19.12,17.84,22.13,18.51,20.77,18.98,11.08,8.74,6.95,9.01,5.34,2.84,2.58,5.85,--,--,--, 应收账款周转天数(天),64.34,57.22,63.71,74.44,76.87,21.92,28.53,11.91,63.26,30.96,18.72,18.83,20.18,16.27,19.45,17.33,18.96,32.5,41.19,51.77,39.97,67.44,126.93,139.62,61.49,--,--,--, 存货周转率(次),7.34,7.64,7.83,7.8,7.12,14.14,7.9,11.59,3.24,4.73,4.77,3.4,3.71,5.55,5.66,6.57,8.62,7.76,4.32,4.54,8.27,7.91,4.21,3.74,12.2,--,--,--, 固定资产周转率(次),1.66,1.78,1.66,1.37,1.11,1.78,0.95,1.11,0.36,1.03,1.26,1.06,1.12,1.57,1.29,1.33,1.52,1.03,0.91,1.51,1.48,0.87,1.76,5.01,--,--,0.9,--, 总资产周转率(次),0.79,0.91,0.82,0.66,0.58,1.08,0.57,0.68,0.22,0.55,0.64,0.56,0.56,0.8,0.71,0.69,0.8,0.64,0.46,0.64,1,0.66,0.86,1.12,1.37,--,0.9,--, 存货周转天数(天),49.04,47.14,45.97,46.15,50.58,25.46,45.6,31.07,110.98,76.03,75.51,105.93,96.99,64.85,63.56,54.78,41.79,46.37,83.29,79.26,43.55,45.48,85.53,96.39,29.51,--,--,--, 总资产周转天数(天),458.02,395.3,437.37,548.53,619.09,333.86,632.91,531.76,1619.43,654.43,559.7,646.32,648.42,449.66,509.27,524.7,451.86,563.03,787.06,565.68,358.71,543.64,419.43,322.41,263.52,--,400.71,--, 流动资产周转率(次),1.85,2.38,2.36,1.81,1.61,3.97,2.03,2.75,0.89,1.64,1.79,1.59,1.59,2.39,2.04,1.93,2.3,1.86,1.29,1.68,3.36,3,1.7,1.46,1.92,1.79,147.13,--, 流动资产周转天数(天),194.3,151.14,152.83,198.92,222.92,90.67,177.44,131.09,402.77,220.01,201.33,225.75,226.32,150.83,176.36,186.25,156.68,193.76,278.64,214.3,107.1,119.89,212.04,247.34,187.54,200.95,2.45,--, 经营现金净流量对销售收入比率(%),0.07,0.1,0.09,0,0.01,0.03,0.02,0.02,-0.37,-0.14,0.01,0.06,0.05,0.11,0.02,0.12,0.17,0.04,0.1,0.09,0,-0.11,-0.08,--,--,--,--,--, 资产的经营现金流量回报率(%),0.06,0.09,0.07,0,0,0.09,0.01,0.02,-0.11,-0.09,0.01,0.03,0.02,0.08,0.01,0.07,0.12,0.03,0.04,0.05,0,-0.06,-0.05,--,--,--,--,--, 经营现金净流量与净利润的比率(%),2.91,4.52,9.77,0.16,0.17,1.22,--,--,-0.39,--,--,2.06,--,1.21,0.69,3.2,3.01,1.13,2.82,1.53,0.03,-1.05,-0.5,--,--,--,--,--, 经营现金净流量对负债比率(%),0.28,0.43,0.29,0.01,0.01,0.36,0.02,0.02,-0.13,-0.08,0.01,0.04,0.03,0.13,0.02,0.1,0.16,0.04,0.06,0.07,0,-0.13,-0.17,--,--,--,--,--, 现金流量比率(%),33.34,51.34,32.96,0.79,1.55,42.37,2.02,1.86,-15.15,-10.3,1.19,5.39,4.36,16.07,2.03,11.68,19.76,4.76,8.11,10.19,0.36,-19.81,-17.44,--,--,--,--,--,