报告日期,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2016-06-30,2016-03-31,2015-12-31,2014-12-31,2013-12-31, 应收账款周转率(次),3.34,1.94,1.17,0.46,1.79,1.11,0.7,0.34,2.85,1.95,1.39,0.72,2.93,1.99,1.31,0.69,2.64,--,--,--,4.37,5.95,4.69, 应收账款周转天数(天),107.87,139.51,153.96,195.52,200.96,242.52,256.45,267.38,126.21,138.6,129.25,124.21,123.03,135.71,137.67,131,136.23,--,--,--,82.31,60.54,76.74, 存货周转率(次),1.62,1.12,0.7,0.24,1.51,1.02,0.71,0.3,2.88,1.73,1.5,0.73,2.57,1.75,1.16,0.64,2.18,--,--,--,2.66,2.84,3.03, 固定资产周转率(次),1.8,--,0.6,--,1.39,--,0.65,--,3.52,--,1.84,--,5.19,--,3.88,2.07,8.03,--,--,--,14.86,--,1.45, 总资产周转率(次),0.41,0.26,0.15,0.05,0.29,0.21,0.14,0.06,0.61,0.42,0.33,0.17,0.78,0.52,0.44,0.23,0.92,--,--,--,1.5,1.87,1.45, 存货周转天数(天),222.63,241.48,255.86,370.07,237.73,265.88,253.27,298.01,125.09,155.67,119.69,123.44,140.2,154.63,154.92,141.27,165.34,--,--,--,135.19,126.97,118.8, 总资产周转天数(天),870.62,1052.22,1195.22,1807.23,1226.99,1305.61,1286.63,1554.4,586.22,635.59,539.57,533.18,461.01,520.63,407.33,385.27,390.92,--,--,--,240.06,192.63,247.88, 流动资产周转率(次),0.77,0.5,0.3,0.1,0.45,0.31,0.2,0.08,0.8,0.55,0.44,0.22,1.02,0.67,0.61,0.32,1.16,--,--,--,1.72,2.07,171.08, 流动资产周转天数(天),466.99,542.71,609.76,908.17,802.5,881.49,884.09,1126.41,449.72,493.51,409.56,408.16,354.54,403.77,293.54,280.46,310.32,--,--,--,209.28,173.86,2.1, 经营现金净流量对销售收入比率(%),0.14,0.16,0.16,0.1,0.63,0.59,0.86,1.15,0.04,-0.07,0.08,0.01,-0.16,0.02,-0,0.05,0.07,0.05,0.05,0.07,0.01,0.05,-0, 资产的经营现金流量回报率(%),0.05,0.04,0.02,0.01,0.21,0.14,0.14,0.07,0.02,-0.03,0.03,0,-0.09,0.01,-0,0.01,0.06,--,--,--,0.01,0.07,-0, 经营现金净流量与净利润的比率(%),4.46,23.87,--,--,--,--,--,--,0.44,-0.57,0.62,0.05,-0.99,0.15,-0.01,0.26,0.45,0.34,0.32,0.45,0.07,0.34,-0.06, 经营现金净流量对负债比率(%),0.11,0.1,0.06,0.01,0.52,0.39,0.43,0.18,0.04,-0.06,0.09,0.01,-0.32,0.04,-0,0.03,0.15,--,--,--,0.03,0.08,-0, 现金流量比率(%),16.55,16.67,10.6,2.84,96.04,64.47,68.39,23.28,4.7,-7.67,12.72,0.76,-43.61,5.24,-0.33,4.35,17.94,--,--,--,2.92,7.77,-0.48,