报告日期,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2016-06-30,2016-03-31,2015-12-31,2015-09-30,2015-06-30,2015-03-31,2014-12-31,2014-09-30,2014-06-30,2014-03-31,2013-12-31,2013-09-30,2012-12-31,2011-12-31,2010-12-31,2009-12-31, 应收账款周转率(次),3.87,13.59,9.3,6.58,3.33,25.74,26.45,19.59,6.03,7.87,5.1,3.56,2.12,12.39,12.17,5.65,2.55,2.48,1.38,0.72,0.23,1.86,1.44,1.03,0.59,4.04,3.48,2.56,--,11.82,--,13.19,14.48,16.92,19.06, 应收账款周转天数(天),23.24,26.49,29.03,27.34,27.04,13.99,10.21,9.19,14.91,45.73,52.93,50.59,42.4,29.06,22.19,31.85,35.32,145.09,195.06,248.79,399.11,193.62,186.92,174.17,151.54,89.18,77.51,70.36,--,30.47,--,27.3,24.87,21.28,18.89, 存货周转率(次),1.24,5.95,3.67,2.36,1.54,7.07,6.07,4.72,1.69,4.11,3.92,2.29,1.77,6.96,3.49,2.16,0.93,2.16,1.35,0.77,0.25,1.33,0.74,0.52,0.26,1.59,1.1,0.67,--,2.07,--,2.07,3.57,3.52,3.07, 固定资产周转率(次),--,1.15,--,0.53,--,1.61,--,1.01,--,0.62,--,0.35,--,1.37,--,0.63,--,0.63,--,0.33,--,1.01,--,0.5,--,1.74,--,0.91,--,3.52,--,3.77,--,--,0.46, 总资产周转率(次),0.09,0.32,0.23,0.15,0.09,0.47,0.39,0.29,0.1,0.19,0.14,0.1,0.06,0.39,0.25,0.16,0.07,0.15,0.1,0.06,0.02,0.18,0.12,0.09,0.05,0.32,0.29,0.21,--,0.61,--,0.51,0.65,--,0.46, 存货周转天数(天),72.67,60.46,73.48,76.41,58.61,50.92,44.48,38.14,53.16,87.66,68.82,78.54,50.77,51.73,77.39,83.43,97.24,167.02,199.76,233.89,361.16,270.88,363.05,344.76,344.7,225.76,246.35,270.23,--,173.86,--,173.52,100.98,102.37,117.26, 总资产周转天数(天),1015.8,1117.32,1162.29,1215.4,983.61,759.49,693.91,626.74,911.85,1924.1,1917.61,1792.83,1391.04,923.79,1090.03,1130.65,1278.41,2411.25,2678.57,2884.62,4090.91,2037.35,2280.41,1975.85,1645.34,1112.48,921.5,857.55,--,587.08,--,702.3,557.36,--,781.25, 流动资产周转率(次),0.22,0.89,0.7,0.46,0.29,1.16,0.94,0.71,0.2,0.34,0.25,0.17,0.11,0.79,0.52,0.33,0.16,0.37,0.24,0.16,0.06,0.36,0.22,0.17,0.1,0.63,0.7,0.5,--,1.31,--,0.94,1.12,1.31,98.51, 流动资产周转天数(天),414.56,403.45,384.73,391.73,315.57,310.32,286.29,253.06,457.55,1051.09,1073.99,1038.06,801.42,453.4,522.65,538.12,568.18,961.8,1137.32,1111.11,1624.55,988.74,1218.41,1044.08,910.01,571.88,387.93,360.07,--,275.63,--,382,321.51,273.79,3.65, 经营现金净流量对销售收入比率(%),-0.01,0.11,0.26,0.39,0.36,0.28,0.22,0.28,0.26,0.07,0.01,0.02,0.27,0.09,0.12,0.19,0.16,0.43,0.37,0.03,-1.02,-0.11,-0,0.3,-0.54,0.27,0.29,0.68,0.5,0.32,0.22,0.48,0.36,0.47,0.29, 资产的经营现金流量回报率(%),-0,0.03,0.06,0.06,0.03,0.12,0.08,0.07,0.03,0.01,0,0,0.02,0.03,0.03,0.03,0.01,0.06,0.04,0,-0.02,-0.02,-0,0.03,-0.03,0.08,0.09,0.15,--,0.2,--,0.24,0.22,0.29,0.13, 经营现金净流量与净利润的比率(%),-0.03,2.61,9.48,31.98,31.16,5.69,4.84,11.32,5.28,--,--,--,--,4.47,4.7,5.49,1.57,--,--,--,--,-10.89,--,27.1,-3.4,1.14,1.24,2.25,1.43,0.94,0.64,1.5,0.83,1.13,1.07, 经营现金净流量对负债比率(%),-0,0.09,0.15,0.15,0.08,0.29,0.19,0.17,0.07,0.03,0,0,0.05,0.09,0.07,0.07,0.03,0.17,0.1,0.01,-0.09,-0.08,-0,0.13,-0.12,0.32,0.25,0.42,--,0.65,--,0.68,0.75,0.76,0.33, 现金流量比率(%),-0.26,11.88,22.55,22.91,12.98,44.38,26.6,23.59,9.98,4.13,0.4,0.49,5.52,10.71,8.41,9.18,4.22,20.1,12.36,0.87,-10.86,-8.84,-0.21,16.17,-14.52,36.99,28.69,55.6,--,88.36,--,123.11,148.84,136.74,43,