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, 应收账款周转率(次),1.64,1.84,1.82,1.89,1.82,1.88,1.75,1.44,1.65,2.11,3.72,1.34,1.18,4.31,6.81,4.59,8.02,8.75,2.67,2.69,2.56,1.3,1.88,2.92,6.31,9.78,10.03,8.77,5.31, 应收账款周转天数(天),219.22,195.96,197.42,190.44,198.01,191.96,206.14,250.05,217.98,170.27,96.68,269.32,303.85,83.6,52.83,78.4,44.9,41.15,134.64,133.69,140.9,275.88,191.69,123.31,57.04,36.81,35.89,41.06,67.86, 存货周转率(次),1.43,1.4,1.14,1.17,1.07,1.2,1.28,1.24,1.78,2.14,3.3,0.94,0.86,2.3,2.66,1.43,1.88,2.21,1.45,2.18,1.49,1.04,1.37,1.47,2.13,2.97,3.7,3.79,2.5, 固定资产周转率(次),5.29,5.08,4.07,4.78,6.8,7.39,5.98,4.79,5.58,6.56,8.36,1.12,1.03,1.53,1.14,0.62,0.79,1.04,1.17,3.62,3.22,1.76,2.73,3.02,3.95,5.37,7.48,9.74,1.15, 总资产周转率(次),0.41,0.44,0.43,0.48,0.49,0.52,0.52,0.48,0.59,0.7,1.1,0.28,0.22,0.52,0.55,0.35,0.46,0.39,0.25,0.41,0.36,0.24,0.42,0.55,0.81,1.04,1.27,1.6,1.15, 存货周转天数(天),252.61,256.83,316.34,306.51,336.7,300.2,281.07,290.63,201.87,168.62,109.01,384.86,418.51,156.77,135.2,250.99,191.73,162.79,248.36,164.81,241.85,347.56,263.04,245.05,168.71,121.33,97.41,94.87,144.04, 总资产周转天数(天),882.35,821.36,836.04,752.19,735.9,697.27,694.44,748.29,607.19,516.35,327.99,1298.7,1652.89,697.54,655.74,1027.1,781.76,913.47,1438.27,885.61,1010.95,1529.96,853.49,657.05,443.57,345.36,283.55,225.06,314.3, 流动资产周转率(次),0.53,0.56,0.55,0.61,0.6,0.61,0.61,0.56,0.71,0.84,1.38,0.43,0.31,0.87,1.18,0.95,1.38,0.75,0.38,0.59,0.54,0.35,0.58,0.74,1.18,1.6,1.98,2.44,166.11, 流动资产周转天数(天),679.12,646.44,655.74,589.49,601.3,593.96,594.26,637.51,509.84,427.76,260.72,845.07,1154.22,412.32,304.31,379.79,261.61,483.03,935.31,607.8,665.56,1027.1,620.69,484.2,306.17,224.89,182.28,147.6,2.17, 经营现金净流量对销售收入比率(%),0.07,0.18,0.07,0.17,-0.03,0.14,0.04,0.11,-0.05,0.05,0.12,-1.37,0.9,0.02,-0.03,-0,0.01,0.08,-0.11,-0.12,0.1,-0.01,-0.14,--,--,--,--,--,--, 资产的经营现金流量回报率(%),0.03,0.07,0.03,0.07,-0.01,0.07,0.02,0.05,-0.03,0.04,0.08,-0.44,0.22,0.02,-0.02,-0,0,0.05,-0.02,-0.06,0.04,-0,-0.06,--,--,--,--,--,--, 经营现金净流量与净利润的比率(%),0.83,2.45,0.89,2.31,-0.27,1.58,0.95,2.95,-1.52,0.42,0.99,--,0.09,--,--,-0.05,0.11,--,--,--,5.02,--,-18.53,--,--,--,--,--,--, 经营现金净流量对负债比率(%),0.05,0.15,0.06,0.15,-0.03,0.13,0.05,0.13,-0.07,0.1,0.2,-0.31,0.18,0,-0.01,-0,0,0.03,-0.03,-0.09,0.08,-0,-0.11,--,--,--,--,--,--, 现金流量比率(%),5.62,17.62,7.16,16.61,-3.46,14.87,5.07,13.64,-7.47,10.37,22.58,-31.99,18.27,0.71,-0.74,-0.07,0.22,2.98,-3.18,-9.14,7.91,-0.38,-11.98,--,--,--,--,--,--,