报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2018-12-31,2017-12-31,2017-06-30,2016-12-31,2015-12-31,2014-12-31, 应收账款周转率(次),2.27,1.46,0.7,2.66,1.98,1.2,--,2.53,--,1.3,--,--,1.75,2.76,2.91,3.36, 应收账款周转天数(天),118.97,123.44,128.79,135.15,136.57,150.36,--,142.23,--,138.27,--,--,103.04,130.48,123.69,107.06, 存货周转率(次),2.08,1.56,0.71,3.73,2.95,1.92,--,4.03,--,1.94,4.78,6,3.27,8.88,12.38,12.58, 固定资产周转率(次),--,1.27,--,2.38,1.73,1.1,--,--,--,--,--,--,--,--,--,1.12, 总资产周转率(次),0.37,0.26,0.12,0.58,0.53,0.34,--,0.76,--,--,--,--,--,--,--,1.12, 存货周转天数(天),129.55,115.13,127.62,96.58,91.38,93.85,--,89.38,--,92.66,75.38,59.95,54.99,40.54,29.09,28.61, 总资产周转天数(天),725.61,679.5,741.35,625.33,511.56,533.18,--,473.93,--,--,--,--,--,--,--,321, 流动资产周转率(次),0.58,0.4,0.18,0.9,0.95,0.6,--,1.3,--,0.69,1.61,1.83,0.93,1.88,1.72,159.86, 流动资产周转天数(天),468.67,449.44,502.51,400.13,282.75,301.86,--,276.82,--,261.78,224.01,197.03,193.24,191.79,209.44,2.25, 经营现金净流量对销售收入比率(%),0.07,0.03,-0.08,0.07,0.09,0.06,-0.01,0.26,0.13,0.15,0.13,0,0.06,0.1,0.13,0.17, 资产的经营现金流量回报率(%),0.02,0.01,-0.01,0.03,0.04,0.02,--,0.18,--,0.06,0.12,0,0.03,0.12,0.13,0.19, 经营现金净流量与净利润的比率(%),0.55,0.2,-0.72,0.43,0.58,0.38,-0.04,1.3,0.67,0.76,0.57,0.01,0.27,0.59,0.88,1.04, 经营现金净流量对负债比率(%),0.12,0.03,-0.04,0.15,0.12,0.06,--,0.5,--,0.16,0.3,0.01,0.05,0.2,0.19,0.32, 现金流量比率(%),14.09,3.91,-5.01,17.55,14.13,6.42,--,57.16,--,16.84,30.5,0.76,5.16,19.56,18.95,32.48,