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, 应收账款周转率(次),5.61,6.11,5.8,4.7,4.57,5.3,4.75,5.11,4.84,4.85,3.5,3.12, 应收账款周转天数(天),64.14,58.95,62.09,76.63,78.76,67.98,75.86,70.38,74.42,74.25,102.72,115.51, 存货周转率(次),4.24,3.96,3.26,3.01,3.29,3.53,3.18,3.27,3.22,3.82,3.2,3.36, 固定资产周转率(次),17.41,16.43,12.52,10.28,8.38,10.97,19.55,20.32,17.09,16.31,--,1.19, 总资产周转率(次),1.36,1.26,1.03,0.98,0.97,0.98,0.95,1,1.08,1.53,1.27,1.19, 存货周转天数(天),84.94,90.98,110.36,119.72,109.56,101.91,113.37,110.19,111.9,94.27,112.56,107, 总资产周转天数(天),264.9,284.77,351.08,368.97,372.44,368.63,380.67,358.92,334.04,235.71,282.8,303.44, 流动资产周转率(次),1.72,1.61,1.34,1.24,1.17,1.18,1.09,1.12,1.21,1.79,1.48,137.32, 流动资产周转天数(天),209.52,223.99,269.52,290.74,306.41,305.94,328.86,321.49,296.32,201.2,242.47,2.62, 经营现金净流量对销售收入比率(%),0.07,0.04,0.1,0.2,0.05,0.14,0.15,0.07,0.01,0.2,0.09,0.11, 资产的经营现金流量回报率(%),0.08,0.04,0.09,0.17,0.05,0.13,0.14,0.06,0.01,0.28,0.11,0.14, 经营现金净流量与净利润的比率(%),0.72,0.4,0.98,1.91,0.53,1.17,1.28,0.67,0.11,2.13,1.07,1.61, 经营现金净流量对负债比率(%),0.22,0.1,0.27,0.47,0.14,0.38,0.45,0.2,0.03,0.52,0.19,0.2, 现金流量比率(%),22.25,10.45,26.97,48.47,14.57,38.36,47.57,21.08,2.95,53.54,19.04,20.58,