报告日期,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2015-12-31,2015-09-30,2015-06-30,2015-03-31,2014-12-31,2014-09-30,2013-12-31,2012-12-31,2011-12-31, 应收账款周转率(次),0.55,2.75,1.62,0.95,0.4,2.48,1.36,0.87,0.42,1.61,1.65,1.28,0.67,3.99,--,1.65,--,3.32,3.44,2.85,1.95,0.61,3.17,1.81,4.56,4.2,2.5, 应收账款周转天数(天),162.43,130.75,166.63,189.04,223.77,144.95,199,205.86,214.23,222.95,163.44,141.02,134.21,90.21,--,108.85,--,108.35,104.62,94.83,92.22,146.77,113.5,149.18,79.03,85.63,144.16, 存货周转率(次),1.97,3.62,1.32,0.78,0.35,3.47,4.17,2.78,1.33,3.93,4.79,5.22,1.9,9.13,--,2.13,--,12.87,19.11,9.09,6.85,2.19,19.13,8.96,48.87,43.23,22.53, 固定资产周转率(次),--,6.21,--,2.32,--,5.82,--,2.07,--,3.55,--,3.44,--,7.85,--,3.34,--,7.34,8.01,--,--,--,6.75,--,--,--,0.22, 总资产周转率(次),0.06,0.33,0.21,0.13,0.05,0.32,0.18,0.12,0.05,0.16,0.12,0.09,0.04,0.22,--,0.09,--,0.19,0.22,--,--,--,0.21,0.13,0.34,--,0.22, 存货周转天数(天),45.61,99.34,205.06,230.39,260.34,103.83,64.79,64.85,67.79,91.7,56.37,34.46,47.31,39.42,--,84.48,--,27.98,18.84,29.71,26.29,41.08,18.82,30.14,7.37,8.33,15.98, 总资产周转天数(天),1528.01,1096.89,1303.72,1433.12,1682.24,1112.14,1474.6,1520.27,1672.86,2242.99,2303.75,1967.21,2205.88,1667.44,--,2050.11,--,1861.43,1616.52,--,--,--,1728.28,2081.73,1073.67,--,1640.84, 流动资产周转率(次),0.16,0.87,0.54,0.33,0.14,0.81,0.5,0.32,0.14,0.49,0.39,0.3,0.14,0.98,--,0.42,--,0.79,1.04,0.99,0.63,0.28,1.49,0.9,2.13,1.83,113.1, 流动资产周转天数(天),549.12,414.56,499.35,549.95,647.02,442.15,542.5,567.64,647.48,737.55,685.63,604.03,651.23,367.01,--,431.86,--,456.68,344.53,273.11,287.13,321.89,242.16,298.71,169.09,196.75,3.18, 经营现金净流量对销售收入比率(%),-0.27,0.14,-0.14,-0.06,-0.2,-0.03,-0.29,-0.32,-0.29,0.12,-0.09,-0.08,-0.65,0.08,0.1,0.11,-0.12,0.76,0.44,0.32,0.31,0.29,-0.05,-0.16,0.15,0.23,0.42, 资产的经营现金流量回报率(%),-0.02,0.04,-0.03,-0.01,-0.01,-0.01,-0.05,-0.04,-0.02,0.02,-0.01,-0.01,-0.02,0.02,--,0.01,--,0.15,0.1,0.05,0.03,0.01,-0.01,-0.02,0.05,0.07,0.09, 经营现金净流量与净利润的比率(%),-1.43,0.74,-0.65,-0.26,-0.99,-0.2,-1.58,-1.8,-1.86,0.57,-0.31,-0.31,-2.27,0.3,0.31,0.3,-0.33,2.04,2.05,1.24,1,1.07,-0.17,-0.59,0.68,1.24,3.56, 经营现金净流量对负债比率(%),-0.04,0.1,-0.06,-0.02,-0.02,-0.02,-0.13,-0.09,-0.04,0.04,-0.02,-0.02,-0.07,0.04,--,0.03,--,0.36,0.19,0.1,0.07,0.02,-0.02,-0.04,0.09,0.13,0.16, 现金流量比率(%),-5.2,14.36,-9.4,-2.39,-3.9,-3.53,-23.26,-15.08,-5.77,6.09,-4.99,-4.09,-19.3,9.29,--,4.32,--,62.59,29.34,15.82,9.98,3.57,-3.01,-7.24,15.18,23.59,26.94,