报告日期,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2015-12-31,2014-12-31,2014-06-30,2013-12-31,2012-12-31,2011-12-31, 应收账款周转率(次),4.35,2.65,1.58,0.82,3.71,2.63,2,1.09,5.15,3.19,2.29,1.32,6.58,4.48,--,1.61,6.96,6.74,4.83,2.07,4.46,5.6,3.76, 应收账款周转天数(天),82.76,102.01,113.58,110.09,97.06,102.49,90.16,82.89,69.9,84.67,78.48,68.11,54.68,60.29,--,55.8,51.7,53.38,74.55,86.92,80.63,64.25,95.79, 存货周转率(次),2.3,1.83,1.19,0.58,2.21,1.81,1.3,0.7,2.37,1.84,1.2,0.47,1.95,1.62,--,0.52,2.24,2.16,1.59,0.81,1.31,1.53,1.36, 固定资产周转率(次),11.2,--,5.47,--,12.38,--,7.05,--,17.48,--,10.3,--,18.07,14.36,--,--,--,--,--,--,--,--,0.84, 总资产周转率(次),0.75,0.58,0.38,0.19,0.78,0.63,0.46,0.26,1.13,0.91,0.62,0.27,1.34,1.12,--,0.36,1.46,--,--,--,--,--,0.84, 存货周转天数(天),156.72,147.18,151.03,155.93,162.98,149.3,138.72,129.07,152.17,146.98,149.88,190.48,184.87,166.24,--,173.34,160.37,166.41,226.91,222.77,275.86,235.32,265.25, 总资产周转天数(天),477.01,468.18,478.85,482.06,459.59,430.35,394.05,351.43,319.01,295.6,289.86,329.07,268.38,242.09,--,246.91,246.12,--,--,--,--,--,426.49, 流动资产周转率(次),0.84,0.64,0.42,0.21,0.86,0.68,0.5,0.28,1.23,0.99,0.67,0.29,1.48,1.24,--,0.4,1.64,1.63,1.22,0.64,1.12,1.3,100.54, 流动资产周转天数(天),430.26,420.56,429.59,433.73,420.56,394.39,359.57,322.35,293.45,272.04,268.5,305.91,243.54,217.92,--,223.44,220,220.29,295.47,283.29,320.28,276.56,3.58, 经营现金净流量对销售收入比率(%),0.11,-0.07,-0.2,-0.2,0.07,-0.01,-0.02,-0.13,0.06,-0.15,-0.24,-0.39,0.03,-0.09,-0.21,-0.25,0.06,0.04,0.16,0.02,-0.14,0.06,0.04, 资产的经营现金流量回报率(%),0.08,-0.04,-0.08,-0.04,0.06,-0.01,-0.01,-0.04,0.05,-0.12,-0.13,-0.09,0.04,-0.1,--,-0.09,0.07,0.05,0.14,0.01,-0.11,0.05,0.03, 经营现金净流量与净利润的比率(%),1.89,-0.92,-2.85,-2.39,1.29,-0.11,-0.27,-1.91,1,-2.52,-4.13,-4.99,0.33,-0.86,-2.49,-2.89,0.76,0.35,2.22,0.28,-1.54,0.51,0.34, 经营现金净流量对负债比率(%),0.31,-0.18,-0.36,-0.16,0.2,-0.02,-0.04,-0.12,0.13,-0.34,-0.34,-0.22,0.07,-0.21,--,-0.15,0.12,0.09,0.27,0.02,-0.24,0.11,0.05, 现金流量比率(%),30.93,-18.11,-35.86,-16.41,20.1,-1.9,-4.12,-12.29,12.83,-34.35,-34.02,-22.11,6.86,-21.23,--,-15,12.6,8.86,26.52,2.29,-23.97,11.31,4.99,