报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2018-12-31,2017-12-31,2016-12-31, 应收账款周转率(次),1.99,1.34,0.61,3.21,1.71,1.28,--,3.29,--,1.34,--,--,--, 应收账款周转天数(天),135.52,134,147.11,112.31,157.9,140.76,--,109.5,--,134.76,--,--,--, 存货周转率(次),2.15,1.64,0.68,3.05,1.88,1.31,--,2.89,--,1.21,2.74,2.62,1.92, 固定资产周转率(次),--,1.51,--,2.51,--,1.09,--,--,--,--,--,--,0.41, 总资产周转率(次),0.4,0.29,0.12,0.56,0.34,0.28,--,0.61,--,--,--,--,0.41, 存货周转天数(天),125.45,109.76,133.23,117.94,143.3,137,--,124.4,--,148.37,131.35,137.63,187.41, 总资产周转天数(天),678.05,626.3,721.73,641.48,792.02,643.32,--,589.49,--,--,--,--,881.7, 流动资产周转率(次),0.55,0.39,0.17,0.8,0.47,0.42,--,0.93,--,0.42,0.89,0.8,60.39, 流动资产周转天数(天),487.63,456.04,527.55,452.72,574.96,433.32,--,386.97,--,431.65,406.41,450.79,5.96, 经营现金净流量对销售收入比率(%),-0.01,-0.09,-0.18,0.08,-0.16,-0.17,-0.71,0.14,-0.08,0.01,0.11,0.1,0.14, 资产的经营现金流量回报率(%),-0,-0.02,-0.02,0.04,-0.05,-0.05,--,0.09,--,0,0.06,0.05,0.06, 经营现金净流量与净利润的比率(%),-0.07,-0.48,-0.79,0.63,-1.17,-1.08,-4.4,1.17,-0.55,0.04,0.96,0.83,1.73, 经营现金净流量对负债比率(%),-0.02,-0.09,-0.09,0.13,-0.13,-0.11,--,0.18,--,0,0.11,0.1,0.11, 现金流量比率(%),-1.66,-9.57,-9.72,13.5,-13.47,-11.02,--,18.64,--,0.38,11.65,10.13,10.97,