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, 应收账款周转率(次),7.19,6.99,7.29,8.92,9.31,7.97,6.43,7.96,11.07,12.33,14.79, 应收账款周转天数(天),50.05,51.51,49.4,40.36,38.66,45.15,56.02,45.22,32.51,29.19,24.34, 存货周转率(次),4.31,4.08,4.53,4.94,5.43,5.25,4.52,5.75,8.25,7.4,7.6, 固定资产周转率(次),8.84,7.06,5.81,5.04,5.71,6.54,7.38,8.8,--,--,1.86, 总资产周转率(次),1.01,0.93,0.83,0.78,0.86,0.76,0.67,1.02,1.9,--,1.86, 存货周转天数(天),83.49,88.25,79.56,72.81,66.28,68.55,79.65,62.62,43.65,48.64,47.39, 总资产周转天数(天),357.18,387.6,434.05,460.89,417.39,474.12,539.65,351.84,189.87,--,193.78, 流动资产周转率(次),1.4,1.28,1.17,1.08,1.12,0.93,0.78,1.22,2.49,2.32,264.31, 流动资产周转天数(天),256.52,280.77,308.83,332.81,322.81,386.93,461.54,295.98,144.47,155.11,1.36, 经营现金净流量对销售收入比率(%),0.09,0.07,0.03,0.05,0.05,0.1,0.03,-0.04,0.08,0.11,0.07, 资产的经营现金流量回报率(%),0.08,0.06,0.03,0.04,0.04,0.07,0.02,-0.03,0.14,0.17,0.12, 经营现金净流量与净利润的比率(%),1.07,0.85,0.45,0.78,1.03,2.19,1.81,-0.5,0.95,1.57,1.63, 经营现金净流量对负债比率(%),0.18,0.16,0.06,0.09,0.12,0.2,0.07,-0.11,0.22,0.26,0.19, 现金流量比率(%),18.5,17.88,6.75,9.77,14.52,25.26,7.15,-11.25,23.29,30.22,18.63,