报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2016-06-30,2016-03-31,2015-12-31,2014-12-31,2013-12-31, 应收账款周转率(次),1.7,1.12,0.52,2.16,1.54,0.99,0.48,2.34,1.54,0.96,0.41,2.94,2.31,1.59,0.82,2.86,2.21,1.45,0.64,2.49,--,--,--,2.97,2.83,1.94, 应收账款周转天数(天),158.86,160.74,172.88,166.69,174.77,182.2,185.76,153.75,175.17,188.19,219.89,122.34,116.79,113.26,109.97,126,122.1,123.77,141.2,144.58,--,--,--,121.13,127.38,185.63, 存货周转率(次),2.76,1.63,0.81,4.12,2.4,1.6,0.72,3.5,2.35,1.22,0.51,5.11,3.47,2.45,1.26,6.05,4.16,2.78,1.26,6.14,--,--,--,6.62,6.65,6.51, 固定资产周转率(次),--,0.5,--,1.16,--,0.39,--,1.14,--,0.38,--,1.84,--,1.17,--,2.72,--,--,0.79,3.28,--,--,--,--,--,0.72, 总资产周转率(次),0.37,0.21,0.11,0.45,0.28,0.16,0.07,0.4,0.3,0.14,0.06,0.65,0.53,0.41,0.22,0.85,0.58,0.44,0.2,0.82,--,--,--,1.05,--,0.72, 存货周转天数(天),97.85,110.38,111.15,87.36,112.73,112.51,125.56,102.71,114.83,147.34,177.73,70.51,77.71,73.36,71.22,59.54,64.94,64.72,71.24,58.64,--,--,--,54.37,54.11,55.28, 总资产周转天数(天),724.64,858.78,857.14,795.23,956.09,1156.07,1221.17,906.8,903.31,1312.91,1576.18,553.17,509.24,439.24,401.79,423.63,462.8,412.65,452.49,438.65,--,--,--,341.59,--,497.17, 流动资产周转率(次),0.94,0.53,0.25,1.02,0.63,0.35,0.16,0.83,0.63,0.3,0.12,1.2,0.98,0.73,0.38,1.42,0.96,0.78,0.35,1.28,--,--,--,1.51,1.57,101.72, 流动资产周转天数(天),287.42,341.82,353.91,352.22,426.74,508.19,559.35,432.85,429.87,608.52,776.53,299.38,276.3,247.15,235.79,253.68,281.9,230.68,256.41,282.11,--,--,--,238.9,229.17,3.54, 经营现金净流量对销售收入比率(%),0.03,0.25,0.34,0.11,0.24,0.55,0.84,0.04,-0.09,-0.05,0.09,0.22,0.14,0.14,-0.09,-0.04,-0.01,0.07,0.25,0.1,0.13,0.41,1.3,0.17,0.19,-0.07, 资产的经营现金流量回报率(%),0.01,0.05,0.03,0.05,0.06,0.09,0.06,0.01,-0.03,-0.01,0.01,0.13,0.07,0.06,-0.02,-0.02,-0.01,0.03,0.05,0.07,--,--,--,0.15,0.18,-0.05, 经营现金净流量与净利润的比率(%),1.03,8.17,6.22,2.2,3.6,5.44,5.52,--,--,--,--,1.66,0.93,0.77,-0.3,-0.17,-0.06,0.36,1.35,0.53,0.75,2.5,7.62,0.9,0.93,-0.41, 经营现金净流量对负债比率(%),0.02,0.09,0.07,0.1,0.13,0.21,0.15,0.03,-0.05,-0.01,0.01,0.34,0.16,0.14,-0.05,-0.06,-0.02,0.06,0.11,0.15,--,--,--,0.34,0.34,-0.08, 现金流量比率(%),2.56,12.79,10.46,15.27,15.55,25.59,19.02,3.88,-5.41,-1.49,1.3,40.87,17.84,16.68,-5.29,-6.78,-2.13,7.57,12.88,17.57,--,--,--,38.72,36.3,-8.48,