报告日期,2021-09-30,2021-06-30,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2015-12-31,2014-12-31, 应收账款周转率(次),7.18,4.01,2.06,7.37,5.51,3.43,1.62,8.36,6.76,4.32,2.06,9.74,7.45,4.56,2.19,9.86,--,--,--,9,8.97,9.27, 应收账款周转天数(天),37.58,44.92,43.62,48.83,48.97,52.43,55.47,43.04,39.94,41.65,43.75,36.94,36.26,39.45,41.11,36.5,--,--,--,40.01,40.15,38.85, 存货周转率(次),8.93,5.32,2.56,9.94,6.72,3.83,1.89,10.83,8.48,5.46,2.55,11.98,9.66,6.11,2.75,13.13,--,--,--,11.66,11.14,12.43, 固定资产周转率(次),--,9.62,--,17.82,--,6.47,--,27.4,--,15.48,--,38.32,--,22.49,--,44.32,--,--,--,32.88,--,3.22, 总资产周转率(次),1.87,1.24,0.55,1.83,1.18,0.67,0.3,2.08,1.56,1.05,0.52,3.11,2.39,1.44,0.82,3.94,--,--,--,3.7,3.28,3.22, 存货周转天数(天),30.23,33.84,35.19,36.22,40.19,46.95,47.53,33.25,31.85,32.97,35.29,30.04,27.94,29.44,32.73,27.42,--,--,--,30.88,32.3,28.96, 总资产周转天数(天),144.08,144.95,164.84,196.5,228.45,270.03,296.44,173.15,173.07,170.81,172.41,115.76,112.74,125.44,109.32,91.32,--,--,--,97.24,109.7,111.89, 流动资产周转率(次),2.27,1.51,0.66,2.22,1.42,0.8,0.37,2.5,1.85,1.24,0.61,3.6,2.66,1.57,0.92,4.47,--,--,--,4.36,3.88,372.18, 流动资产周转天数(天),119.17,119.34,135.97,162.05,190.46,223.69,243.57,143.79,145.61,145.61,148.12,100,101.63,114.83,97.69,80.54,--,--,--,82.6,92.9,0.97, 经营现金净流量对销售收入比率(%),-0.06,-0.08,-0.06,0.04,0.11,0.28,0.35,0.08,0.06,0.1,0.02,-0.07,-0.12,-0.34,-0.5,0.02,-0.14,0.02,-0.24,0.02,0.12,0.06, 资产的经营现金流量回报率(%),-0.1,-0.1,-0.03,0.06,0.12,0.16,0.1,0.13,0.08,0.09,0.01,-0.2,-0.24,-0.4,-0.4,0.05,--,--,--,0.05,0.49,0.21, 经营现金净流量与净利润的比率(%),-1.54,-1.96,-1.54,1.43,3.78,8.18,8.19,2.44,1.94,3.08,0.71,-2.05,-3.04,-9.9,-13.42,0.4,-3.59,0.48,-7.13,0.46,6.85,4.88, 经营现金净流量对负债比率(%),-0.19,-0.2,-0.06,0.13,0.22,0.33,0.27,0.39,0.27,0.28,0.04,-1.83,-2.56,-1.55,-1.02,0.14,--,--,--,0.14,1.34,0.35, 现金流量比率(%),-24.08,-29.52,-9.72,18.63,30.53,48.89,50.5,92.51,77.6,81.63,15.91,-195.84,-272.47,-156.15,-102.9,13.6,--,--,--,13.57,134.96,35.17,