报告日期,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2016-06-30,2016-03-31,2015-12-31,2015-09-30,2015-06-30,2015-03-31,2014-12-31,2014-09-30,2014-06-30,2014-03-31,2013-12-31,2013-09-30,2013-06-30,2013-03-31,2012-12-31,2012-09-30,2012-06-30,2012-03-31,2011-12-31,2011-09-30,2011-06-30,2010-12-31,2009-12-31,2008-12-31, 应收账款周转率(次),4.05,19.11,8.34,5.87,3.07,14.12,7.08,5.36,3.86,6.74,4.17,2.66,1.4,7.55,5.96,4.15,2.73,11.42,8.79,6.39,3.2,10.78,7.54,5.26,2.68,9.25,5.12,3.66,1.9,10.81,5.48,4.17,1.95,12.27,5.74,4.44,--,15.66,--,6.5,17.91,16.04,13.54, 应收账款周转天数(天),22.24,18.84,32.37,30.67,29.33,25.49,38.14,33.59,23.34,53.41,64.69,67.75,64.35,47.69,45.32,43.33,32.93,31.51,30.73,28.15,28.16,33.41,35.82,34.25,33.64,38.94,52.78,49.12,47.43,33.3,49.31,43.16,46.04,29.33,47.08,40.51,--,22.99,--,27.7,20.11,22.45,26.59, 存货周转率(次),2.07,5.11,5.34,3.38,1.73,3.95,3.61,2.28,1.3,3.92,3.21,2.48,1.56,5.53,4.57,3.38,1.74,6.49,4.91,3.55,1.93,5.82,4.98,3.3,1.71,4.64,4.18,2.72,1.38,5.95,6.04,4.35,1.94,7.88,7.58,5.26,--,7.84,--,4.97,7.16,7.51,6.83, 固定资产周转率(次),--,2.68,--,1.45,--,1.96,--,1.14,--,1.83,--,1.17,--,2.38,--,1.42,--,2.96,--,1.77,--,3.3,--,2.01,--,3.28,--,2.04,--,4.79,--,3.26,--,6.9,--,4.29,--,8.81,--,6.04,--,--,1.43, 总资产周转率(次),0.26,0.62,0.52,0.35,0.18,0.46,0.41,0.26,0.16,0.41,0.34,0.25,0.17,0.53,0.44,0.33,0.2,0.66,0.55,0.39,0.22,0.73,0.63,0.43,0.24,0.74,0.64,0.45,0.26,0.98,0.81,0.58,0.28,1.13,0.92,0.65,--,1.29,--,0.81,1.42,--,1.43, 存货周转天数(天),43.55,70.51,50.57,53.33,52.17,91.05,74.83,78.86,69.18,91.72,84.2,72.44,57.8,65.08,59.14,53.33,51.64,55.45,55.04,50.69,46.65,61.82,54.24,54.61,52.7,77.56,64.52,66.21,65.13,60.54,44.73,41.37,46.3,45.67,35.62,34.24,--,45.9,--,36.21,50.26,47.91,52.69, 总资产周转天数(天),351.98,576.83,518.13,520.98,505.05,777.2,656.77,697.13,576.55,884.96,789.24,712.31,543.48,681.04,614.89,552.15,457.32,548.7,492.16,462.96,403.77,496,429.59,416.76,382.82,484.26,421.28,396.56,350.47,367.72,333.42,308.27,319.83,319.06,292.43,274.98,--,279.83,--,221.54,253.34,--,251.8, 流动资产周转率(次),0.42,1.08,0.89,0.61,0.32,0.82,0.72,0.44,0.26,0.69,0.58,0.43,0.28,0.9,0.74,0.58,0.34,1.24,1.05,0.82,0.47,1.47,1.27,0.86,0.46,1.4,1.11,0.81,0.45,1.71,1.36,0.99,0.48,1.94,1.57,1.13,--,2.11,--,1.28,2.21,2.46,223.95, 流动资产周转天数(天),216.61,333.46,302.52,294.36,281.6,437.64,373.75,405.04,341.56,518.13,468.99,418.31,322.93,399.64,362.85,311.85,266.35,291.47,256.95,219.54,191.65,244.91,212.4,209.3,195.61,257.77,242.89,222.17,198.72,210.92,199.1,182.24,189.31,185.85,172.1,159.8,--,170.95,--,140.85,163.15,146.16,1.61, 经营现金净流量对销售收入比率(%),0.06,0.17,0.12,0.11,-0.04,0.06,0.02,0.13,0.09,-0.07,-0.08,-0.14,-0.27,-0.08,-0.11,-0.23,-0.12,0.24,0.17,0.1,0.08,0.07,0.06,0.05,-0.13,0.01,-0.06,-0.07,-0.12,-0.01,-0.04,-0.12,-0.11,0.05,-0.06,0,--,0.04,--,-0.02,0.05,0.04,0.04, 资产的经营现金流量回报率(%),0.02,0.1,0.06,0.04,-0.01,0.03,0.01,0.03,0.01,-0.03,-0.03,-0.04,-0.04,-0.04,-0.05,-0.08,-0.02,0.16,0.09,0.04,0.02,0.05,0.03,0.02,-0.03,0.01,-0.03,-0.03,-0.03,-0.01,-0.03,-0.06,-0.03,0.05,-0.05,0,--,0.05,--,-0.02,0.07,0.06,0.06, 经营现金净流量与净利润的比率(%),0.5,4.44,1.6,1.41,-0.41,2.61,1.63,44.67,4.87,--,--,--,-20.7,-14.75,-9,-27.34,-4.68,9.27,4.82,2.94,2.73,4.59,2.01,1.66,-4.36,0.46,-3.36,-3.29,-3.98,-0.5,-1.51,-3.62,-3.05,1.34,-1.41,0.01,--,1.01,--,-0.48,0.97,1.18,3.4, 经营现金净流量对负债比率(%),0.03,0.17,0.1,0.07,-0.01,0.05,0.02,0.05,0.02,-0.05,-0.05,-0.06,-0.07,-0.06,-0.07,-0.13,-0.04,0.27,0.16,0.07,0.03,0.08,0.06,0.03,-0.05,0.01,-0.06,-0.05,-0.05,-0.02,-0.06,-0.11,-0.06,0.1,-0.09,0,--,0.09,--,-0.03,0.11,0.11,0.11, 现金流量比率(%),3.07,18.16,10.59,7.02,-1.23,5.24,1.86,6.22,2.48,-5.35,-5.27,-7.26,-8.26,-7.18,-8.13,-13.79,-4.29,34.94,20.51,8.92,3.85,10.41,7.22,4.15,-6.77,1.42,-7.79,-6.96,-7.21,-2.85,-8.71,-16.38,-7.23,11.01,-10.01,0.08,--,9.13,--,-2.71,13.38,11.98,12.61,