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, 应收账款周转率(次),9.01,9.16,9.81,10.7,8.56,8.79,10.72,15.27,16.23,19.72,24.06,26.41,27.19,25.07,20.56,18.06,19.97,24.03,23.36,12.44,9.33,7.1,7.3,9.5,9.02,11.24,10.03, 应收账款周转天数(天),39.96,39.28,36.71,33.63,42.04,40.93,33.57,23.58,22.18,18.25,14.96,13.63,13.24,14.36,17.51,19.93,18.03,14.98,15.41,28.95,38.58,50.74,49.3,37.89,39.91,32.01,35.89, 存货周转率(次),29.34,25.66,23.63,25.02,18.72,17.21,15.63,13.24,10.46,6.12,5.02,5.47,9,27.16,27.67,31.29,25.68,19.97,23.62,21.42,20.56,19.87,23.88,20.04,11.24,10.71,8.23, 固定资产周转率(次),12.49,13.99,14.06,13.34,9.9,11.99,12.28,12.15,11.33,10.57,11.04,10.31,9.2,10.62,8.36,8.07,11.03,9.43,9.2,7.66,7.47,5.96,8.82,29.42,33.8,59.62,2.82, 总资产周转率(次),1.04,1.25,1.46,1.32,0.99,1.2,1.32,1.37,1.19,1.05,1,0.92,1.01,1.39,1.73,1.89,1.77,1.63,1.87,1.74,1.88,1.7,1.67,2.16,2.42,3.08,2.82, 存货周转天数(天),12.27,14.03,15.24,14.39,19.23,20.91,23.03,27.2,34.43,58.81,71.66,65.81,39.99,13.25,13.01,11.51,14.02,18.02,15.24,16.81,17.51,18.12,15.08,17.96,32.04,33.6,43.76, 总资产周转天数(天),345.06,288.23,247.39,271.86,364.63,299.48,271.94,262.79,303.67,341.3,358.53,391.52,355.2,259.87,207.82,190.8,202.85,221.02,192.31,207.1,191.83,211.7,215.21,166.77,148.92,116.76,127.44, 流动资产周转率(次),2,2.22,2.37,2.19,1.66,1.85,1.97,2.1,1.86,1.53,1.37,1.25,1.48,2.39,3.14,3.06,2.49,2.27,2.89,2.81,2.95,2.7,2.63,3.25,3.17,3.7,340.33, 流动资产周转天数(天),179.86,162.26,152.2,164.02,216.8,195.02,182.49,171.49,193.58,234.77,262.2,287.26,243.16,150.62,114.62,117.72,144.48,158.41,124.5,128.26,122.04,133.42,137.09,110.71,113.45,97.42,1.06, 经营现金净流量对销售收入比率(%),0.08,0.1,0.02,-0.03,0.07,0.09,-0.05,0,0.02,0.04,-0.07,-0.02,-0.21,0.15,0.06,0,0.13,0.03,0.01,0.01,0.05,0.04,0,--,--,--,--, 资产的经营现金流量回报率(%),0.08,0.11,0.03,-0.04,0.07,0.11,-0.07,0.01,0.03,0.05,-0.07,-0.02,-0.18,0.18,0.11,0,0.24,0.05,0.02,0.02,0.09,0.08,0,--,--,--,--, 经营现金净流量与净利润的比率(%),10.77,45.36,--,-6.16,7.61,4.72,-2.72,0.23,1.09,1.31,-2.65,-1.16,-11.87,7.93,4.82,0.16,6.99,1.43,0.8,1.25,1.65,1.13,0.07,--,--,--,--, 经营现金净流量对负债比率(%),0.17,0.23,0.06,-0.07,0.14,0.25,-0.13,0.01,0.07,0.1,-0.11,-0.03,-0.35,0.32,0.23,0.01,0.68,0.14,0.07,0.08,0.3,0.22,0.01,--,--,--,--, 现金流量比率(%),19.56,27.7,6.18,-7.73,15.77,26.77,-13.01,1.41,6.61,9.99,-12.19,-3.01,-35.7,33.47,23.95,1.09,69.4,14.34,7.27,7.95,29.53,21.63,1.02,--,--,--,--,