报告日期,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2016-06-30,2016-03-31,2015-12-31,2015-09-30,2015-06-30,2015-03-31,2014-12-31,2014-09-30,2014-06-30,2014-03-31,2013-12-31,2013-03-31,2012-12-31,2011-12-31,2010-12-31, 应收账款周转率(次),1.99,8.68,6.9,4.13,1.92,8.63,6.53,4.53,--,7.68,--,--,1.74,7.4,5.44,3.57,1.6,7.13,6.09,3.86,1.93,7.93,6.11,3.57,1.9,10.53,7.63,5.13,2.29,10.09,--,--,9.71,--, 应收账款周转天数(天),45.32,41.49,39.13,43.56,46.83,41.74,41.32,39.75,--,46.89,--,--,51.61,48.65,49.64,50.4,56.35,50.49,44.3,46.68,46.64,45.41,44.18,50.44,47.42,34.2,35.37,35.08,39.27,35.68,--,--,37.06,--, 存货周转率(次),0.72,2.66,1.68,1.01,0.45,1.79,1.15,0.7,0.33,1.19,0.83,0.54,0.22,1.12,0.8,0.5,0.23,1.24,0.93,0.58,0.28,1.17,0.77,0.47,0.21,1.16,0.76,0.47,0.23,1.09,--,--,1.02,--, 固定资产周转率(次),--,0.28,--,0.12,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,--, 总资产周转率(次),0.04,0.18,0.13,0.08,0.04,0.16,--,--,--,--,--,--,0.03,--,0.11,0.07,0.03,--,0.09,0.06,0.03,--,0.09,0.05,0.03,--,0.12,0.07,--,--,--,--,--,--, 存货周转天数(天),125.63,135.31,160.34,178.61,200.85,201.68,235.11,256.78,270.6,302.67,323.78,330.52,415.51,321.6,338.3,362.17,390.12,290.91,289.98,308.17,326.09,307.56,348.52,382.41,421.74,310.21,354.38,382.41,388.43,331.34,--,--,351.25,--, 总资产周转天数(天),2059.5,1988.95,2086.55,2203.18,2535.21,2237.41,--,--,--,--,--,--,2970.3,--,2566.54,2654.87,2821.32,--,2950.82,3015.08,2848.1,--,3061.22,3454.89,3396.23,--,2319.59,2419.35,--,--,--,--,--,--, 流动资产周转率(次),0.27,1.13,0.83,0.53,0.22,1.04,0.69,0.5,0.23,0.91,0.66,0.41,0.19,0.91,0.69,0.45,0.21,0.94,0.78,0.49,0.25,0.68,0.49,0.27,0.11,0.65,0.72,0.44,0.2,80.22,--,--,60.81,--, 流动资产周转天数(天),334.45,319.21,326.88,342.14,403.23,346.89,391.13,363.34,383.47,395.43,407.24,437.21,468.75,394.43,389.44,400.36,424.13,384.37,344.08,368.17,354.47,532.07,553.28,655.98,795.05,550.88,377.25,409.37,440.96,4.49,--,--,5.92,--, 经营现金净流量对销售收入比率(%),0.43,0.43,0.5,0.48,0.44,0.5,0.57,0.56,0.49,0.56,0.62,0.61,0.57,0.59,0.62,0.6,0.58,0.51,0.69,0.6,0.5,0.46,0.55,0.41,0.52,0.53,0.54,0.46,0.5,1.02,--,--,0.07,--, 资产的经营现金流量回报率(%),0.02,0.08,0.07,0.04,0.02,0.08,0.06,0.04,0.02,0.08,0.06,0.04,0.02,0.07,0.06,0.04,0.02,0.06,0.06,0.04,0.02,0.05,0.04,0.02,0.01,0.07,0.06,0.03,0.02,0.14,0.09,0.04,0.01,0.13, 经营现金净流量与净利润的比率(%),1.95,2.03,2,1.91,2.46,2.07,1.92,2,1.59,2.08,1.96,2.1,1.68,2.09,1.74,1.58,1.3,1.83,1.72,1.69,1.37,1.42,1.38,1.11,1.23,1.62,1.5,1.41,1.38,3.45,--,--,0.23,--, 经营现金净流量对负债比率(%),0.03,0.12,0.1,0.06,0.02,0.12,0.09,0.06,0.02,0.11,0.09,0.06,0.02,0.1,0.08,0.05,0.02,0.08,0.1,0.06,0.02,0.08,0.07,0.03,0.02,0.11,0.09,0.05,0.02,0.19,0.12,0.05,0.01,0.16, 现金流量比率(%),9.6,39.08,37.53,21.75,9.03,45.66,34.2,22.69,11.02,46.86,47.36,27.08,11.09,44.21,31.27,18.3,8.45,25.72,77.75,37.31,15.6,42.71,45.52,17.37,11.56,46.54,62.32,26.07,7.18,67.32,--,--,2.96,--,