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, 应收账款周转率(次),5.45,5.61,5.39,5.93,5.89,6.24,6.8,5.9,5.97,5.95, 应收账款周转天数(天),66.07,64.13,66.81,60.73,61.14,57.65,52.91,61.02,60.27,60.52, 存货周转率(次),6.12,6.35,6.15,7.01,7.46,7.91,7.19,6.39,7.02,6.66, 固定资产周转率(次),6.89,6.24,6.78,7.22,5.5,4.88,5.01,--,--,1.34, 总资产周转率(次),1,1.16,1.22,1.11,0.99,1.19,1.48,1.38,--,1.34, 存货周转天数(天),58.86,56.69,58.52,51.32,48.27,45.54,50.09,56.36,51.3,54.08, 总资产周转天数(天),358.35,310.88,295.96,323.54,362.54,301.99,242.49,260.23,--,269.16, 流动资产周转率(次),1.27,1.57,1.62,1.41,1.29,1.71,2.33,2.26,2.23,202.94, 流动资产周转天数(天),284.41,229.28,222.81,255.28,279.44,210.4,154.22,159.4,161.38,1.77, 经营现金净流量对销售收入比率(%),0.16,0.21,0.11,0.04,0.1,0.12,0.11,0.09,0.1,0.09, 资产的经营现金流量回报率(%),0.14,0.22,0.15,0.04,0.08,0.13,0.16,0.12,0.13,0.12, 经营现金净流量与净利润的比率(%),3.12,2.41,1.58,0.59,0.86,1.36,1.41,1.03,1.06,0.98, 经营现金净流量对负债比率(%),0.28,0.55,0.4,0.11,0.2,0.43,0.33,0.21,0.23,0.18, 现金流量比率(%),29.85,61.45,39.78,11.21,20.44,43.77,33.38,21.77,23.81,18.96,