报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-03-31,2018-12-31,2017-12-31,2016-12-31, 应收账款周转率(次),3.59,2.23,1.07,5.19,--,2.03,--,4.82,0.99,4.83,4.39,3.86, 应收账款周转天数(天),75.17,80.62,84.1,69.42,--,88.74,--,74.7,90.94,74.47,82.08,93.32, 存货周转率(次),5.18,3.73,1.37,7.62,--,3.45,--,7.03,1.14,6.24,4.54,3.66, 固定资产周转率(次),--,4.15,--,--,--,--,--,--,--,--,--,1.23, 总资产周转率(次),1.06,0.69,0.26,1.62,--,0.72,--,--,--,--,--,1.23, 存货周转天数(天),52.13,48.31,65.5,47.26,--,52.17,--,51.23,79.04,57.7,79.33,98.43, 总资产周转天数(天),254.48,262.39,346.69,222.02,--,251.36,--,--,--,--,--,293.33, 流动资产周转率(次),1.43,0.93,0.35,2.39,--,1.04,--,2.31,0.44,2.21,1.94,180.54, 流动资产周转天数(天),188.49,193.69,256.78,150.85,--,173.04,--,155.54,203.57,162.87,186,1.99, 经营现金净流量对销售收入比率(%),-0.14,-0.17,-0.24,0.07,0.06,-0.02,-0.04,0.08,-0.09,0.07,0.17,0.05, 资产的经营现金流量回报率(%),-0.11,-0.09,-0.05,0.11,--,-0.02,--,0.13,-0.03,0.11,0.22,0.06, 经营现金净流量与净利润的比率(%),-1.98,-2.66,-4.6,0.87,0.66,-0.34,-0.8,1.11,-1.36,0.87,2.23,0.5, 经营现金净流量对负债比率(%),-0.41,-0.42,-0.26,0.33,--,-0.04,--,0.31,-0.06,0.25,0.34,0.09, 现金流量比率(%),-41.59,-42.39,-26.09,33.23,--,-4.16,--,31.34,-5.74,24.81,34.09,9.06,